sort imports

mobile/apps/photos/flutter_rust_bridge.yaml

@@ -0,0 +1,9 @@
+rust_input: crate::api
+rust_root: rust/
+dart_output: lib/src/rust
+
+dart_preamble: |
+  // ignore_for_file: require_trailing_commas
+
+full_dep: true
+web: false

mobile/apps/photos/integration_test/app_init_test.dart

@@ -91,10 +91,9 @@ Future<void> dismissUpdateAppDialog(WidgetTester tester) async {
   await tester.pumpAndSettle();
 }
 
-
 ///Use this widget as floating action buttom in HomeWidget so that frames
-///are built and rendered continuously so that timeline trace has continuous 
-///data. Change the duraiton in `_startTimer()` to control the duraiton of 
+///are built and rendered continuously so that timeline trace has continuous
+///data. Change the duraiton in `_startTimer()` to control the duraiton of
 ///test on app init.
 
 // class TempWidget extends StatefulWidget {
@@ -127,4 +126,4 @@ Future<void> dismissUpdateAppDialog(WidgetTester tester) async {
 //         ? const CircularProgressIndicator()
 //         : const SizedBox.shrink();
 //   }
-// }
+// }

mobile/apps/photos/lib/core/cache/image_cache.dart

@@ -1,4 +1,3 @@
-
 import "dart:io";
 
 import 'package:photos/core/cache/lru_map.dart';

mobile/apps/photos/lib/models/api/user/srp.dart

@@ -5,7 +5,6 @@ class SetupSRPRequest {
   final String srpA;
   final bool isUpdate;
 
-
   SetupSRPRequest({
     required this.srpUserID,
     required this.srpSalt,
@@ -82,6 +81,7 @@ class CompleteSRPSetupRequest {
     );
   }
 }
+
 class SrpAttributes {
   final String srpUserID;
   final String srpSalt;

mobile/apps/photos/lib/services/machine_learning/face_ml/face_detection/detection.dart

@@ -89,8 +89,8 @@ class FaceDetectionRelative extends Detection {
     // Calculate the scaling
     final double scaleX = originalSize.width / newSize.width;
     final double scaleY = originalSize.height / newSize.height;
-    const double translateX = 0;
-    const double translateY = 0;
+    final double translateX = - ((originalSize.width - newSize.width) ~/ 2) / originalSize.width;
+    final double translateY = - ((originalSize.height - newSize.height) ~/ 2) / originalSize.height;
 
     // Transform Box
     _transformBox(box, scaleX, scaleY, translateX, translateY);

mobile/apps/photos/lib/services/machine_learning/face_ml/face_detection/face_detection_service.dart

@@ -1,6 +1,5 @@
 import "dart:async";
 import 'dart:typed_data' show Float32List, Uint8List;
-import 'dart:ui' as ui show Image;
 
 import 'package:logging/logging.dart';
 import "package:onnx_dart/onnx_dart.dart";
@@ -44,8 +43,9 @@ class FaceDetectionService extends MlModel {
 
   /// Detects faces in the given image data.
   static Future<List<FaceDetectionRelative>> predict(
-    ui.Image image,
-    Uint8List rawRgbaBytes,
+    Uint8List resizedBytes,
+    int resizedHeight,
+    int resizedWidth,
     int sessionAddress,
   ) async {
     assert(
@@ -57,9 +57,11 @@ class FaceDetectionService extends MlModel {
 
     final startTime = DateTime.now();
 
-    final (inputImageList, scaledSize) = await preprocessImageYoloFace(
-      image,
-      rawRgbaBytes,
+    final scaledSize = Dimensions(width: resizedWidth, height: resizedHeight);
+    final inputImageList = await resizedToPreprocessedYoloFace(
+      resizedBytes,
+      scaledSize.width,
+      scaledSize.height,
     );
     final preprocessingTime = DateTime.now();
     final preprocessingMs =

mobile/apps/photos/lib/services/machine_learning/face_ml/face_recognition_service.dart

@@ -1,11 +1,11 @@
 import "dart:async" show unawaited;
 import "dart:typed_data" show Uint8List, Float32List;
-import "dart:ui" show Image;
 
 import "package:logging/logging.dart";
 import "package:photos/core/event_bus.dart";
 import "package:photos/events/diff_sync_complete_event.dart";
 import "package:photos/events/people_changed_event.dart";
+import "package:photos/models/ml/face/dimension.dart";
 import "package:photos/services/machine_learning/face_ml/face_detection/detection.dart";
 import "package:photos/services/machine_learning/face_ml/face_detection/face_detection_service.dart";
 import "package:photos/services/machine_learning/face_ml/face_embedding/face_embedding_service.dart";
@@ -73,8 +73,11 @@ class FaceRecognitionService {
 
   static Future<List<FaceResult>> runFacesPipeline(
     int enteFileID,
-    Image image,
+    Dimensions imageDimensions,
     Uint8List rawRgbaBytes,
+    Uint8List resizedRgbBytes,
+    int resizedHeight,
+    int resizedWidth,
     int faceDetectionAddress,
     int faceEmbeddingAddress,
   ) async {
@@ -85,8 +88,9 @@ class FaceRecognitionService {
     final List<FaceDetectionRelative> faceDetectionResult =
         await _detectFacesSync(
       enteFileID,
-      image,
-      rawRgbaBytes,
+      resizedRgbBytes,
+      resizedHeight,
+      resizedWidth,
       faceDetectionAddress,
       faceResults,
     );
@@ -103,7 +107,7 @@ class FaceRecognitionService {
 
     // Align the faces
     final Float32List faceAlignmentResult = await _alignFacesSync(
-      image,
+      imageDimensions,
       rawRgbaBytes,
       faceDetectionResult,
       faceResults,
@@ -133,8 +137,9 @@ class FaceRecognitionService {
   /// Runs face recognition on the given image data.
   static Future<List<FaceDetectionRelative>> _detectFacesSync(
     int fileID,
-    Image image,
-    Uint8List rawRgbaBytes,
+    Uint8List resizedBytes,
+    int resizedHeight,
+    int resizedWidth,
     int interpreterAddress,
     List<FaceResult> faceResults,
   ) async {
@@ -142,8 +147,9 @@ class FaceRecognitionService {
       // Get the bounding boxes of the faces
       final List<FaceDetectionRelative> faces =
           await FaceDetectionService.predict(
-        image,
-        rawRgbaBytes,
+        resizedBytes,
+        resizedHeight,
+        resizedWidth,
         interpreterAddress,
       );
 
@@ -169,7 +175,7 @@ class FaceRecognitionService {
   /// Aligns multiple faces from the given image data.
   /// Returns a list of the aligned faces as image data.
   static Future<Float32List> _alignFacesSync(
-    Image image,
+    Dimensions imageDimensions,
     Uint8List rawRgbaBytes,
     List<FaceDetectionRelative> faces,
     List<FaceResult> faceResults,
@@ -177,7 +183,7 @@ class FaceRecognitionService {
     try {
       final (alignedFaces, alignmentResults, _, blurValues, _) =
           await preprocessToMobileFaceNetFloat32List(
-        image,
+        imageDimensions,
         rawRgbaBytes,
         faces,
       );

mobile/apps/photos/lib/services/machine_learning/ml_exceptions.dart

@@ -1,4 +1,3 @@
-
 class GeneralFaceMlException implements Exception {
   final String message;
 
@@ -26,4 +25,4 @@ class CouldNotRunFaceDetector implements Exception {}
 
 class CouldNotWarpAffine implements Exception {}
 
-class CouldNotRunFaceEmbeddor implements Exception {}
+class CouldNotRunFaceEmbeddor implements Exception {}

mobile/apps/photos/lib/services/machine_learning/semantic_search/clip/clip_image_encoder.dart

@@ -1,5 +1,4 @@
 import "dart:typed_data" show Uint8List, Float32List;
-import "dart:ui" show Image;
 
 import "package:logging/logging.dart";
 import "package:onnx_dart/onnx_dart.dart";
@@ -28,16 +27,23 @@ class ClipImageEncoder extends MlModel {
   factory ClipImageEncoder() => instance;
 
   static Future<List<double>> predict(
-    Image image,
-    Uint8List rawRgbaBytes,
+    Uint8List resizedBytes,
+    int resizedHeight,
+    int resizedWidth,
     int sessionAddress, [
     int? enteFileID,
   ]) async {
     final startTime = DateTime.now();
-    final inputList = await preprocessImageClip(image, rawRgbaBytes);
+
+    final inputList = await resizedToPreprocessedClip(
+      resizedBytes,
+      resizedWidth,
+      resizedHeight,
+    );
     final preprocessingTime = DateTime.now();
     final preprocessingMs =
         preprocessingTime.difference(startTime).inMilliseconds;
+
     late List<double> result;
     try {
       if (MlModel.usePlatformPlugin) {
@@ -57,7 +63,7 @@ class ClipImageEncoder extends MlModel {
     final inferenceMs = inferTime.difference(preprocessingTime).inMilliseconds;
     final totalMs = inferTime.difference(startTime).inMilliseconds;
     _logger.info(
-      "Clip image predict took $totalMs ms${enteFileID != null ? " with fileID $enteFileID" : ""} (inference: $inferenceMs ms, preprocessing: $preprocessingMs ms)",
+      "Clip image predict took $totalMs ms${enteFileID != null ? " with fileID $enteFileID" : ""} (preprocessing: $preprocessingMs ms, inference: $inferenceMs ms)",
     );
     return result;
   }

mobile/apps/photos/lib/services/machine_learning/semantic_search/semantic_search_service.dart

@@ -1,7 +1,6 @@
 import "dart:async" show Timer, unawaited;
 import "dart:developer" as dev show log;
 import "dart:math" show min;
-import "dart:ui" show Image;
 
 import "package:flutter/foundation.dart";
 import "package:logging/logging.dart";
@@ -294,13 +293,15 @@ class SemanticSearchService {
 
   static Future<ClipResult> runClipImage(
     int enteFileID,
-    Image image,
-    Uint8List rawRgbaBytes,
+    Uint8List resizedBytes,
+    int resizedHeight,
+    int resizedWidth,
     int clipImageAddress,
   ) async {
     final embedding = await ClipImageEncoder.predict(
-      image,
-      rawRgbaBytes,
+      resizedBytes,
+      resizedHeight,
+      resizedWidth,
       clipImageAddress,
       enteFileID,
     );

mobile/apps/photos/lib/src/rust/api/image_processing.dart

@@ -0,0 +1,45 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: require_trailing_commas
+
+// ignore_for_file: invalid_use_of_internal_member, unused_import, unnecessary_import
+
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+import 'package:photos/src/rust/frb_generated.dart';
+
+// These functions are ignored because they are not marked as `pub`: `process_image_ml`
+
+Future<
+    (
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt
+    )> processImageMlFromPath(
+        {required String imagePath}) =>
+    RustLib.instance.api
+        .crateApiImageProcessingProcessImageMlFromPath(imagePath: imagePath);
+
+Future<
+    (
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt
+    )> processImageMlFromData(
+        {required List<int> rgbaData,
+        required int width,
+        required int height}) =>
+    RustLib.instance.api.crateApiImageProcessingProcessImageMlFromData(
+        rgbaData: rgbaData, width: width, height: height);

mobile/apps/photos/lib/src/rust/api/simple.dart

@@ -0,0 +1,12 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: require_trailing_commas
+
+// ignore_for_file: invalid_use_of_internal_member, unused_import, unnecessary_import
+
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+import 'package:photos/src/rust/frb_generated.dart';
+
+String greet({required String name}) =>
+    RustLib.instance.api.crateApiSimpleGreet(name: name);

mobile/apps/photos/lib/src/rust/custom/init_frb.dart

@@ -0,0 +1,9 @@
+import "package:photos/src/rust/frb_generated.dart";
+
+bool _isInitFrb = false;
+
+Future<void> initFrb() async {
+  if (_isInitFrb) return;
+  await RustLib.init();
+  _isInitFrb = true;
+}

mobile/apps/photos/lib/src/rust/frb_generated.dart

@@ -0,0 +1,525 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: require_trailing_commas
+
+// ignore_for_file: unused_import, unused_element, unnecessary_import, duplicate_ignore, invalid_use_of_internal_member, annotate_overrides, non_constant_identifier_names, curly_braces_in_flow_control_structures, prefer_const_literals_to_create_immutables, unused_field
+
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+import 'package:photos/src/rust/api/image_processing.dart';
+import 'package:photos/src/rust/api/simple.dart';
+import 'package:photos/src/rust/frb_generated.dart';
+import 'package:photos/src/rust/frb_generated.io.dart'
+    if (dart.library.js_interop) 'frb_generated.web.dart';
+
+/// Main entrypoint of the Rust API
+class RustLib extends BaseEntrypoint<RustLibApi, RustLibApiImpl, RustLibWire> {
+  @internal
+  static final instance = RustLib._();
+
+  RustLib._();
+
+  /// Initialize flutter_rust_bridge
+  static Future<void> init({
+    RustLibApi? api,
+    BaseHandler? handler,
+    ExternalLibrary? externalLibrary,
+    bool forceSameCodegenVersion = true,
+  }) async {
+    await instance.initImpl(
+      api: api,
+      handler: handler,
+      externalLibrary: externalLibrary,
+      forceSameCodegenVersion: forceSameCodegenVersion,
+    );
+  }
+
+  /// Initialize flutter_rust_bridge in mock mode.
+  /// No libraries for FFI are loaded.
+  static void initMock({
+    required RustLibApi api,
+  }) {
+    instance.initMockImpl(
+      api: api,
+    );
+  }
+
+  /// Dispose flutter_rust_bridge
+  ///
+  /// The call to this function is optional, since flutter_rust_bridge (and everything else)
+  /// is automatically disposed when the app stops.
+  static void dispose() => instance.disposeImpl();
+
+  @override
+  ApiImplConstructor<RustLibApiImpl, RustLibWire> get apiImplConstructor =>
+      RustLibApiImpl.new;
+
+  @override
+  WireConstructor<RustLibWire> get wireConstructor =>
+      RustLibWire.fromExternalLibrary;
+
+  @override
+  Future<void> executeRustInitializers() async {
+    await api.crateApiSimpleInitApp();
+  }
+
+  @override
+  ExternalLibraryLoaderConfig get defaultExternalLibraryLoaderConfig =>
+      kDefaultExternalLibraryLoaderConfig;
+
+  @override
+  String get codegenVersion => '2.11.1';
+
+  @override
+  int get rustContentHash => 1140226238;
+
+  static const kDefaultExternalLibraryLoaderConfig =
+      ExternalLibraryLoaderConfig(
+    stem: 'rust_lib_photos',
+    ioDirectory: 'rust/target/release/',
+    webPrefix: 'pkg/',
+  );
+}
+
+abstract class RustLibApi extends BaseApi {
+  String crateApiSimpleGreet({required String name});
+
+  Future<void> crateApiSimpleInitApp();
+
+  Future<
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          )>
+      crateApiImageProcessingProcessImageMlFromData(
+          {required List<int> rgbaData,
+          required int width,
+          required int height});
+
+  Future<
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          )>
+      crateApiImageProcessingProcessImageMlFromPath(
+          {required String imagePath});
+}
+
+class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
+  RustLibApiImpl({
+    required super.handler,
+    required super.wire,
+    required super.generalizedFrbRustBinding,
+    required super.portManager,
+  });
+
+  @override
+  String crateApiSimpleGreet({required String name}) {
+    return handler.executeSync(SyncTask(
+      callFfi: () {
+        final arg0 = cst_encode_String(name);
+        return wire.wire__crate__api__simple__greet(arg0);
+      },
+      codec: DcoCodec(
+        decodeSuccessData: dco_decode_String,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiSimpleGreetConstMeta,
+      argValues: [name],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiSimpleGreetConstMeta => const TaskConstMeta(
+        debugName: "greet",
+        argNames: ["name"],
+      );
+
+  @override
+  Future<void> crateApiSimpleInitApp() {
+    return handler.executeNormal(NormalTask(
+      callFfi: (port_) {
+        return wire.wire__crate__api__simple__init_app(port_);
+      },
+      codec: DcoCodec(
+        decodeSuccessData: dco_decode_unit,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiSimpleInitAppConstMeta,
+      argValues: [],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiSimpleInitAppConstMeta => const TaskConstMeta(
+        debugName: "init_app",
+        argNames: [],
+      );
+
+  @override
+  Future<
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          )>
+      crateApiImageProcessingProcessImageMlFromData(
+          {required List<int> rgbaData,
+          required int width,
+          required int height}) {
+    return handler.executeNormal(NormalTask(
+      callFfi: (port_) {
+        final arg0 = cst_encode_list_prim_u_8_loose(rgbaData);
+        final arg1 = cst_encode_u_32(width);
+        final arg2 = cst_encode_u_32(height);
+        return wire
+            .wire__crate__api__image_processing__process_image_ml_from_data(
+                port_, arg0, arg1, arg2);
+      },
+      codec: DcoCodec(
+        decodeSuccessData:
+            dco_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiImageProcessingProcessImageMlFromDataConstMeta,
+      argValues: [rgbaData, width, height],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiImageProcessingProcessImageMlFromDataConstMeta =>
+      const TaskConstMeta(
+        debugName: "process_image_ml_from_data",
+        argNames: ["rgbaData", "width", "height"],
+      );
+
+  @override
+  Future<
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          )>
+      crateApiImageProcessingProcessImageMlFromPath(
+          {required String imagePath}) {
+    return handler.executeNormal(NormalTask(
+      callFfi: (port_) {
+        final arg0 = cst_encode_String(imagePath);
+        return wire
+            .wire__crate__api__image_processing__process_image_ml_from_path(
+                port_, arg0);
+      },
+      codec: DcoCodec(
+        decodeSuccessData:
+            dco_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize,
+        decodeErrorData: null,
+      ),
+      constMeta: kCrateApiImageProcessingProcessImageMlFromPathConstMeta,
+      argValues: [imagePath],
+      apiImpl: this,
+    ));
+  }
+
+  TaskConstMeta get kCrateApiImageProcessingProcessImageMlFromPathConstMeta =>
+      const TaskConstMeta(
+        debugName: "process_image_ml_from_path",
+        argNames: ["imagePath"],
+      );
+
+  @protected
+  String dco_decode_String(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as String;
+  }
+
+  @protected
+  List<int> dco_decode_list_prim_u_8_loose(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as List<int>;
+  }
+
+  @protected
+  Uint8List dco_decode_list_prim_u_8_strict(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as Uint8List;
+  }
+
+  @protected
+  (
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt
+  ) dco_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+      dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    final arr = raw as List<dynamic>;
+    if (arr.length != 9) {
+      throw Exception('Expected 9 elements, got ${arr.length}');
+    }
+    return (
+      dco_decode_list_prim_u_8_strict(arr[0]),
+      dco_decode_usize(arr[1]),
+      dco_decode_usize(arr[2]),
+      dco_decode_list_prim_u_8_strict(arr[3]),
+      dco_decode_usize(arr[4]),
+      dco_decode_usize(arr[5]),
+      dco_decode_list_prim_u_8_strict(arr[6]),
+      dco_decode_usize(arr[7]),
+      dco_decode_usize(arr[8]),
+    );
+  }
+
+  @protected
+  int dco_decode_u_32(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as int;
+  }
+
+  @protected
+  int dco_decode_u_8(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return raw as int;
+  }
+
+  @protected
+  void dco_decode_unit(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return;
+  }
+
+  @protected
+  BigInt dco_decode_usize(dynamic raw) {
+    // Codec=Dco (DartCObject based), see doc to use other codecs
+    return dcoDecodeU64(raw);
+  }
+
+  @protected
+  String sse_decode_String(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    final inner = sse_decode_list_prim_u_8_strict(deserializer);
+    return utf8.decoder.convert(inner);
+  }
+
+  @protected
+  List<int> sse_decode_list_prim_u_8_loose(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    final len_ = sse_decode_i_32(deserializer);
+    return deserializer.buffer.getUint8List(len_);
+  }
+
+  @protected
+  Uint8List sse_decode_list_prim_u_8_strict(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    final len_ = sse_decode_i_32(deserializer);
+    return deserializer.buffer.getUint8List(len_);
+  }
+
+  @protected
+  (
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt
+  ) sse_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+      SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    final var_field0 = sse_decode_list_prim_u_8_strict(deserializer);
+    final var_field1 = sse_decode_usize(deserializer);
+    final var_field2 = sse_decode_usize(deserializer);
+    final var_field3 = sse_decode_list_prim_u_8_strict(deserializer);
+    final var_field4 = sse_decode_usize(deserializer);
+    final var_field5 = sse_decode_usize(deserializer);
+    final var_field6 = sse_decode_list_prim_u_8_strict(deserializer);
+    final var_field7 = sse_decode_usize(deserializer);
+    final var_field8 = sse_decode_usize(deserializer);
+    return (
+      var_field0,
+      var_field1,
+      var_field2,
+      var_field3,
+      var_field4,
+      var_field5,
+      var_field6,
+      var_field7,
+      var_field8
+    );
+  }
+
+  @protected
+  int sse_decode_u_32(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getUint32();
+  }
+
+  @protected
+  int sse_decode_u_8(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getUint8();
+  }
+
+  @protected
+  void sse_decode_unit(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+  }
+
+  @protected
+  BigInt sse_decode_usize(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getBigUint64();
+  }
+
+  @protected
+  int sse_decode_i_32(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getInt32();
+  }
+
+  @protected
+  bool sse_decode_bool(SseDeserializer deserializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    return deserializer.buffer.getUint8() != 0;
+  }
+
+  @protected
+  int cst_encode_u_32(int raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    return raw;
+  }
+
+  @protected
+  int cst_encode_u_8(int raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    return raw;
+  }
+
+  @protected
+  void cst_encode_unit(void raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    return raw;
+  }
+
+  @protected
+  void sse_encode_String(String self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_list_prim_u_8_strict(utf8.encoder.convert(self), serializer);
+  }
+
+  @protected
+  void sse_encode_list_prim_u_8_loose(
+      List<int> self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_i_32(self.length, serializer);
+    serializer.buffer
+        .putUint8List(self is Uint8List ? self : Uint8List.fromList(self));
+  }
+
+  @protected
+  void sse_encode_list_prim_u_8_strict(
+      Uint8List self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_i_32(self.length, serializer);
+    serializer.buffer.putUint8List(self);
+  }
+
+  @protected
+  void
+      sse_encode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          ) self,
+          SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    sse_encode_list_prim_u_8_strict(self.$1, serializer);
+    sse_encode_usize(self.$2, serializer);
+    sse_encode_usize(self.$3, serializer);
+    sse_encode_list_prim_u_8_strict(self.$4, serializer);
+    sse_encode_usize(self.$5, serializer);
+    sse_encode_usize(self.$6, serializer);
+    sse_encode_list_prim_u_8_strict(self.$7, serializer);
+    sse_encode_usize(self.$8, serializer);
+    sse_encode_usize(self.$9, serializer);
+  }
+
+  @protected
+  void sse_encode_u_32(int self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putUint32(self);
+  }
+
+  @protected
+  void sse_encode_u_8(int self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putUint8(self);
+  }
+
+  @protected
+  void sse_encode_unit(void self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+  }
+
+  @protected
+  void sse_encode_usize(BigInt self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putBigUint64(self);
+  }
+
+  @protected
+  void sse_encode_i_32(int self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putInt32(self);
+  }
+
+  @protected
+  void sse_encode_bool(bool self, SseSerializer serializer) {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    serializer.buffer.putUint8(self ? 1 : 0);
+  }
+}

mobile/apps/photos/lib/src/rust/frb_generated.io.dart

@@ -0,0 +1,420 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+// ignore_for_file: require_trailing_commas
+
+// ignore_for_file: unused_import, unused_element, unnecessary_import, duplicate_ignore, invalid_use_of_internal_member, annotate_overrides, non_constant_identifier_names, curly_braces_in_flow_control_structures, prefer_const_literals_to_create_immutables, unused_field
+
+import 'api/image_processing.dart';
+import 'api/simple.dart';
+import 'dart:async';
+import 'dart:convert';
+import 'dart:ffi' as ffi;
+import 'frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated_io.dart';
+
+abstract class RustLibApiImplPlatform extends BaseApiImpl<RustLibWire> {
+  RustLibApiImplPlatform({
+    required super.handler,
+    required super.wire,
+    required super.generalizedFrbRustBinding,
+    required super.portManager,
+  });
+
+  @protected
+  String dco_decode_String(dynamic raw);
+
+  @protected
+  List<int> dco_decode_list_prim_u_8_loose(dynamic raw);
+
+  @protected
+  Uint8List dco_decode_list_prim_u_8_strict(dynamic raw);
+
+  @protected
+  (
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt
+  ) dco_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+      dynamic raw);
+
+  @protected
+  int dco_decode_u_32(dynamic raw);
+
+  @protected
+  int dco_decode_u_8(dynamic raw);
+
+  @protected
+  void dco_decode_unit(dynamic raw);
+
+  @protected
+  BigInt dco_decode_usize(dynamic raw);
+
+  @protected
+  String sse_decode_String(SseDeserializer deserializer);
+
+  @protected
+  List<int> sse_decode_list_prim_u_8_loose(SseDeserializer deserializer);
+
+  @protected
+  Uint8List sse_decode_list_prim_u_8_strict(SseDeserializer deserializer);
+
+  @protected
+  (
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt,
+    Uint8List,
+    BigInt,
+    BigInt
+  ) sse_decode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+      SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_u_32(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_u_8(SseDeserializer deserializer);
+
+  @protected
+  void sse_decode_unit(SseDeserializer deserializer);
+
+  @protected
+  BigInt sse_decode_usize(SseDeserializer deserializer);
+
+  @protected
+  int sse_decode_i_32(SseDeserializer deserializer);
+
+  @protected
+  bool sse_decode_bool(SseDeserializer deserializer);
+
+  @protected
+  ffi.Pointer<wire_cst_list_prim_u_8_strict> cst_encode_String(String raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    return cst_encode_list_prim_u_8_strict(utf8.encoder.convert(raw));
+  }
+
+  @protected
+  ffi.Pointer<wire_cst_list_prim_u_8_loose> cst_encode_list_prim_u_8_loose(
+      List<int> raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    final ans = wire.cst_new_list_prim_u_8_loose(raw.length);
+    ans.ref.ptr.asTypedList(raw.length).setAll(0, raw);
+    return ans;
+  }
+
+  @protected
+  ffi.Pointer<wire_cst_list_prim_u_8_strict> cst_encode_list_prim_u_8_strict(
+      Uint8List raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    final ans = wire.cst_new_list_prim_u_8_strict(raw.length);
+    ans.ref.ptr.asTypedList(raw.length).setAll(0, raw);
+    return ans;
+  }
+
+  @protected
+  int cst_encode_usize(BigInt raw) {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    return raw.toSigned(64).toInt();
+  }
+
+  @protected
+  void cst_api_fill_to_wire_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+      (
+        Uint8List,
+        BigInt,
+        BigInt,
+        Uint8List,
+        BigInt,
+        BigInt,
+        Uint8List,
+        BigInt,
+        BigInt
+      ) apiObj,
+      wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize
+          wireObj) {
+    wireObj.field0 = cst_encode_list_prim_u_8_strict(apiObj.$1);
+    wireObj.field1 = cst_encode_usize(apiObj.$2);
+    wireObj.field2 = cst_encode_usize(apiObj.$3);
+    wireObj.field3 = cst_encode_list_prim_u_8_strict(apiObj.$4);
+    wireObj.field4 = cst_encode_usize(apiObj.$5);
+    wireObj.field5 = cst_encode_usize(apiObj.$6);
+    wireObj.field6 = cst_encode_list_prim_u_8_strict(apiObj.$7);
+    wireObj.field7 = cst_encode_usize(apiObj.$8);
+    wireObj.field8 = cst_encode_usize(apiObj.$9);
+  }
+
+  @protected
+  int cst_encode_u_32(int raw);
+
+  @protected
+  int cst_encode_u_8(int raw);
+
+  @protected
+  void cst_encode_unit(void raw);
+
+  @protected
+  void sse_encode_String(String self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_list_prim_u_8_loose(List<int> self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_list_prim_u_8_strict(
+      Uint8List self, SseSerializer serializer);
+
+  @protected
+  void
+      sse_encode_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize(
+          (
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt,
+            Uint8List,
+            BigInt,
+            BigInt
+          ) self,
+          SseSerializer serializer);
+
+  @protected
+  void sse_encode_u_32(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_u_8(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_unit(void self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_usize(BigInt self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_i_32(int self, SseSerializer serializer);
+
+  @protected
+  void sse_encode_bool(bool self, SseSerializer serializer);
+}
+
+// Section: wire_class
+
+// ignore_for_file: camel_case_types, non_constant_identifier_names, avoid_positional_boolean_parameters, annotate_overrides, constant_identifier_names
+// AUTO GENERATED FILE, DO NOT EDIT.
+//
+// Generated by `package:ffigen`.
+// ignore_for_file: type=lint
+
+/// generated by flutter_rust_bridge
+class RustLibWire implements BaseWire {
+  factory RustLibWire.fromExternalLibrary(ExternalLibrary lib) =>
+      RustLibWire(lib.ffiDynamicLibrary);
+
+  /// Holds the symbol lookup function.
+  final ffi.Pointer<T> Function<T extends ffi.NativeType>(String symbolName)
+      _lookup;
+
+  /// The symbols are looked up in [dynamicLibrary].
+  RustLibWire(ffi.DynamicLibrary dynamicLibrary)
+      : _lookup = dynamicLibrary.lookup;
+
+  /// The symbols are looked up with [lookup].
+  RustLibWire.fromLookup(
+    ffi.Pointer<T> Function<T extends ffi.NativeType>(String symbolName) lookup,
+  ) : _lookup = lookup;
+
+  void store_dart_post_cobject(DartPostCObjectFnType ptr) {
+    return _store_dart_post_cobject(ptr);
+  }
+
+  late final _store_dart_post_cobjectPtr =
+      _lookup<ffi.NativeFunction<ffi.Void Function(DartPostCObjectFnType)>>(
+    'store_dart_post_cobject',
+  );
+  late final _store_dart_post_cobject = _store_dart_post_cobjectPtr
+      .asFunction<void Function(DartPostCObjectFnType)>();
+
+  WireSyncRust2DartDco wire__crate__api__simple__greet(
+    ffi.Pointer<wire_cst_list_prim_u_8_strict> name,
+  ) {
+    return _wire__crate__api__simple__greet(name);
+  }
+
+  late final _wire__crate__api__simple__greetPtr = _lookup<
+          ffi.NativeFunction<
+              WireSyncRust2DartDco Function(
+                  ffi.Pointer<wire_cst_list_prim_u_8_strict>)>>(
+      'frbgen_photos_wire__crate__api__simple__greet');
+  late final _wire__crate__api__simple__greet =
+      _wire__crate__api__simple__greetPtr.asFunction<
+          WireSyncRust2DartDco Function(
+            ffi.Pointer<wire_cst_list_prim_u_8_strict>,
+          )>();
+
+  void wire__crate__api__simple__init_app(int port_) {
+    return _wire__crate__api__simple__init_app(port_);
+  }
+
+  late final _wire__crate__api__simple__init_appPtr =
+      _lookup<ffi.NativeFunction<ffi.Void Function(ffi.Int64)>>(
+    'frbgen_photos_wire__crate__api__simple__init_app',
+  );
+  late final _wire__crate__api__simple__init_app =
+      _wire__crate__api__simple__init_appPtr.asFunction<void Function(int)>();
+
+  void wire__crate__api__image_processing__process_image_ml_from_data(
+    int port_,
+    ffi.Pointer<wire_cst_list_prim_u_8_loose> rgba_data,
+    int width,
+    int height,
+  ) {
+    return _wire__crate__api__image_processing__process_image_ml_from_data(
+      port_,
+      rgba_data,
+      width,
+      height,
+    );
+  }
+
+  late final _wire__crate__api__image_processing__process_image_ml_from_dataPtr =
+      _lookup<
+          ffi.NativeFunction<
+              ffi.Void Function(
+                ffi.Int64,
+                ffi.Pointer<wire_cst_list_prim_u_8_loose>,
+                ffi.Uint32,
+                ffi.Uint32,
+              )>>(
+    'frbgen_photos_wire__crate__api__image_processing__process_image_ml_from_data',
+  );
+  late final _wire__crate__api__image_processing__process_image_ml_from_data =
+      _wire__crate__api__image_processing__process_image_ml_from_dataPtr
+          .asFunction<
+              void Function(
+                int,
+                ffi.Pointer<wire_cst_list_prim_u_8_loose>,
+                int,
+                int,
+              )>();
+
+  void wire__crate__api__image_processing__process_image_ml_from_path(
+    int port_,
+    ffi.Pointer<wire_cst_list_prim_u_8_strict> image_path,
+  ) {
+    return _wire__crate__api__image_processing__process_image_ml_from_path(
+      port_,
+      image_path,
+    );
+  }
+
+  late final _wire__crate__api__image_processing__process_image_ml_from_pathPtr =
+      _lookup<
+          ffi.NativeFunction<
+              ffi.Void Function(
+                ffi.Int64,
+                ffi.Pointer<wire_cst_list_prim_u_8_strict>,
+              )>>(
+    'frbgen_photos_wire__crate__api__image_processing__process_image_ml_from_path',
+  );
+  late final _wire__crate__api__image_processing__process_image_ml_from_path =
+      _wire__crate__api__image_processing__process_image_ml_from_pathPtr
+          .asFunction<
+              void Function(int, ffi.Pointer<wire_cst_list_prim_u_8_strict>)>();
+
+  ffi.Pointer<wire_cst_list_prim_u_8_loose> cst_new_list_prim_u_8_loose(
+    int len,
+  ) {
+    return _cst_new_list_prim_u_8_loose(len);
+  }
+
+  late final _cst_new_list_prim_u_8_loosePtr = _lookup<
+      ffi.NativeFunction<
+          ffi.Pointer<wire_cst_list_prim_u_8_loose> Function(
+              ffi.Int32)>>('frbgen_photos_cst_new_list_prim_u_8_loose');
+  late final _cst_new_list_prim_u_8_loose = _cst_new_list_prim_u_8_loosePtr
+      .asFunction<ffi.Pointer<wire_cst_list_prim_u_8_loose> Function(int)>();
+
+  ffi.Pointer<wire_cst_list_prim_u_8_strict> cst_new_list_prim_u_8_strict(
+    int len,
+  ) {
+    return _cst_new_list_prim_u_8_strict(len);
+  }
+
+  late final _cst_new_list_prim_u_8_strictPtr = _lookup<
+      ffi.NativeFunction<
+          ffi.Pointer<wire_cst_list_prim_u_8_strict> Function(
+              ffi.Int32)>>('frbgen_photos_cst_new_list_prim_u_8_strict');
+  late final _cst_new_list_prim_u_8_strict = _cst_new_list_prim_u_8_strictPtr
+      .asFunction<ffi.Pointer<wire_cst_list_prim_u_8_strict> Function(int)>();
+
+  int dummy_method_to_enforce_bundling() {
+    return _dummy_method_to_enforce_bundling();
+  }
+
+  late final _dummy_method_to_enforce_bundlingPtr =
+      _lookup<ffi.NativeFunction<ffi.Int64 Function()>>(
+    'dummy_method_to_enforce_bundling',
+  );
+  late final _dummy_method_to_enforce_bundling =
+      _dummy_method_to_enforce_bundlingPtr.asFunction<int Function()>();
+}
+
+typedef DartPostCObjectFnType
+    = ffi.Pointer<ffi.NativeFunction<DartPostCObjectFnTypeFunction>>;
+typedef DartPostCObjectFnTypeFunction = ffi.Bool Function(
+    DartPort port_id, ffi.Pointer<ffi.Void> message);
+typedef DartDartPostCObjectFnTypeFunction = bool Function(
+    DartDartPort port_id, ffi.Pointer<ffi.Void> message);
+typedef DartPort = ffi.Int64;
+typedef DartDartPort = int;
+
+final class wire_cst_list_prim_u_8_strict extends ffi.Struct {
+  external ffi.Pointer<ffi.Uint8> ptr;
+
+  @ffi.Int32()
+  external int len;
+}
+
+final class wire_cst_list_prim_u_8_loose extends ffi.Struct {
+  external ffi.Pointer<ffi.Uint8> ptr;
+
+  @ffi.Int32()
+  external int len;
+}
+
+final class wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize
+    extends ffi.Struct {
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> field0;
+
+  @ffi.UintPtr()
+  external int field1;
+
+  @ffi.UintPtr()
+  external int field2;
+
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> field3;
+
+  @ffi.UintPtr()
+  external int field4;
+
+  @ffi.UintPtr()
+  external int field5;
+
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> field6;
+
+  @ffi.UintPtr()
+  external int field7;
+
+  @ffi.UintPtr()
+  external int field8;
+}

mobile/apps/photos/lib/ui/components/bottom_of_title_bar_widget.dart

@@ -18,8 +18,9 @@ class BottomOfTitleBarWidget extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Row(
-      mainAxisAlignment: showCloseButton ? MainAxisAlignment.spaceBetween :
-      MainAxisAlignment.start,
+      mainAxisAlignment: showCloseButton
+          ? MainAxisAlignment.spaceBetween
+          : MainAxisAlignment.start,
       children: [
         Flexible(
           child: Padding(

mobile/apps/photos/lib/ui/extents_page_view.dart

@@ -100,7 +100,7 @@ class ExtentsPageView extends StatefulWidget {
     int? itemCount,
     this.dragStartBehavior = DragStartBehavior.start,
     this.openDrawer,
-  })  : childrenDelegate = SliverChildBuilderDelegate(
+  }) : childrenDelegate = SliverChildBuilderDelegate(
           itemBuilder,
           childCount: itemCount,
           addAutomaticKeepAlives: false,

mobile/apps/photos/lib/ui/tools/collage/collage_item_widget.dart

@@ -1,4 +1,3 @@
-
 import "package:flutter/material.dart";
 import 'package:photos/models/file/file.dart';
 import "package:photos/ui/viewer/file/zoomable_image.dart";

mobile/apps/photos/lib/ui/viewer/file/exif_info_dialog.dart

@@ -1,4 +1,3 @@
-
 import 'package:flutter/material.dart';
 import "package:photos/generated/l10n.dart";
 import 'package:photos/models/file/file.dart';

mobile/apps/photos/lib/utils/image_ml_util.dart

@@ -1,6 +1,6 @@
 import "dart:async";
 import "dart:io" show File, Platform;
-import "dart:math" show exp, max, min, pi;
+import "dart:math" show max, min;
 import "dart:typed_data" show Float32List, Uint8List;
 import "dart:ui";
 
@@ -24,14 +24,23 @@ final _logger = Logger("ImageMlUtil");
 /// These are 8 bit unsigned integers in range 0-255 for each RGB channel
 typedef RGB = (int, int, int);
 
-const gaussianKernelSize = 5;
-const gaussianKernelRadius = gaussianKernelSize ~/ 2;
-const gaussianSigma = 10.0;
-final List<List<double>> gaussianKernel =
-    create2DGaussianKernel(gaussianKernelSize, gaussianSigma);
-
-const maxKernelSize = gaussianKernelSize;
-const maxKernelRadius = maxKernelSize ~/ 2;
+const List<String> supportedRustImageFormats = [
+  'bmp',
+  'dds',
+  'farbfeld',
+  'gif',
+  'hdr',
+  'ico',
+  'jpg',
+  'jpeg',
+  'exr',
+  'png',
+  'pnm',
+  'qoi',
+  'tga',
+  'tiff',
+  'webp',
+];
 
 // Face thumbnail compression constants
 const int _faceThumbnailCompressionQuality = 90;
@@ -102,6 +111,11 @@ Future<DecodedImage> decodeImageFromPath(
   return DecodedImage(image, rawRgbaBytes);
 }
 
+bool canRustDecodeImage(String imagePath) {
+  final format = imagePath.split('.').last;
+  return supportedRustImageFormats.contains(format);
+}
+
 /// Decodes [Uint8List] image data to an ui.[Image] object.
 Future<Image> decodeImageFromData(Uint8List imageData) async {
   // Decoding using flutter paint. This is the fastest and easiest method.
@@ -218,18 +232,19 @@ Future<List<Uint8List>> generateFaceThumbnailsUsingCanvas(
   }
 }
 
-Future<(Float32List, Dimensions)> preprocessImageYoloFace(
-  Image image,
-  Uint8List rawRgbaBytes,
+Future<Float32List> resizedToPreprocessedYoloFace(
+  Uint8List rgbBytes,
+  int rgbWidth,
+  int rgbHeight,
 ) async {
   const requiredWidth = 640;
   const requiredHeight = 640;
-  final scale = min(requiredWidth / image.width, requiredHeight / image.height);
-  final scaledWidth = (image.width * scale).round().clamp(0, requiredWidth);
-  final scaledHeight = (image.height * scale).round().clamp(0, requiredHeight);
+  final int letterboxWidth = requiredWidth - rgbWidth;
+  final int letterboxHeight = requiredHeight - rgbHeight;
+  final int letterboxWidthHalf = letterboxWidth ~/ 2;
+  final int letterboxHeightHalf = letterboxHeight ~/ 2;
 
   final processedBytes = Float32List(3 * requiredHeight * requiredWidth);
-
   final buffer = Float32List.view(processedBytes.buffer);
   int pixelIndex = 0;
   const int channelOffsetGreen = requiredHeight * requiredWidth;
@@ -237,14 +252,18 @@ Future<(Float32List, Dimensions)> preprocessImageYoloFace(
   for (var h = 0; h < requiredHeight; h++) {
     for (var w = 0; w < requiredWidth; w++) {
       late RGB pixel;
-      if (w >= scaledWidth || h >= scaledHeight) {
+      if (w < letterboxWidthHalf ||
+          w >= rgbWidth + letterboxWidthHalf ||
+          h < letterboxHeightHalf ||
+          h >= rgbHeight + letterboxHeightHalf) {
         pixel = const (114, 114, 114);
       } else {
-        pixel = _getPixelBilinear(
-          w / scale,
-          h / scale,
-          image,
-          rawRgbaBytes,
+        final int byteIndex = 3 *
+            (rgbWidth * (h - letterboxHeightHalf) + (w - letterboxWidthHalf));
+        pixel = (
+          rgbBytes[byteIndex],
+          rgbBytes[byteIndex + 1],
+          rgbBytes[byteIndex + 2]
         );
       }
       buffer[pixelIndex] = pixel.$1 / 255;
@@ -254,40 +273,35 @@ Future<(Float32List, Dimensions)> preprocessImageYoloFace(
     }
   }
 
-  return (processedBytes, Dimensions(width: scaledWidth, height: scaledHeight));
+  return processedBytes;
 }
 
-Future<Float32List> preprocessImageClip(
-  Image image,
-  Uint8List rawRgbaBytes,
+Future<Float32List> resizedToPreprocessedClip(
+  Uint8List rgbBytes,
+  int rgbWidth,
+  int rgbHeight,
 ) async {
-  const int requiredWidth = 256;
-  const int requiredHeight = 256;
-  const int requiredSize = 3 * requiredWidth * requiredHeight;
-  final scale = max(requiredWidth / image.width, requiredHeight / image.height);
-  final bool useAntiAlias = scale < 0.8;
-  final scaledWidth = (image.width * scale).round();
-  final scaledHeight = (image.height * scale).round();
-  final widthOffset = max(0, scaledWidth - requiredWidth) / 2;
-  final heightOffset = max(0, scaledHeight - requiredHeight) / 2;
+  const requiredWidth = 256;
+  const requiredHeight = 256;
 
-  final processedBytes = Float32List(requiredSize);
+  final processedBytes = Float32List(3 * requiredHeight * requiredWidth);
   final buffer = Float32List.view(processedBytes.buffer);
   int pixelIndex = 0;
-  const int greenOff = requiredHeight * requiredWidth;
-  const int blueOff = 2 * requiredHeight * requiredWidth;
-  for (var h = 0 + heightOffset; h < scaledHeight - heightOffset; h++) {
-    for (var w = 0 + widthOffset; w < scaledWidth - widthOffset; w++) {
-      final RGB pixel = _getPixelBilinear(
-        w / scale,
-        h / scale,
-        image,
-        rawRgbaBytes,
-        antiAlias: useAntiAlias,
+  const int channelOffsetGreen = requiredHeight * requiredWidth;
+  const int channelOffsetBlue = 2 * requiredHeight * requiredWidth;
+  final widthOffset = max(0, rgbWidth - requiredWidth) ~/ 2;
+  final heightOffset = max(0, rgbHeight - requiredHeight) ~/ 2;
+  for (var h = 0 + heightOffset; h < heightOffset + requiredHeight; h++) {
+    for (var w = 0 + widthOffset; w < widthOffset + requiredWidth; w++) {
+      final int byteIndex = 3 * (rgbWidth * h + w);
+      final RGB pixel = (
+        rgbBytes[byteIndex],
+        rgbBytes[byteIndex + 1],
+        rgbBytes[byteIndex + 2]
       );
       buffer[pixelIndex] = pixel.$1 / 255;
-      buffer[pixelIndex + greenOff] = pixel.$2 / 255;
-      buffer[pixelIndex + blueOff] = pixel.$3 / 255;
+      buffer[pixelIndex + channelOffsetGreen] = pixel.$2 / 255;
+      buffer[pixelIndex + channelOffsetBlue] = pixel.$3 / 255;
       pixelIndex++;
     }
   }
@@ -297,20 +311,20 @@ Future<Float32List> preprocessImageClip(
 
 Future<(Float32List, List<AlignmentResult>, List<bool>, List<double>, Size)>
     preprocessToMobileFaceNetFloat32List(
-  Image image,
+  Dimensions imageDimensions,
   Uint8List rawRgbaBytes,
   List<FaceDetectionRelative> relativeFaces, {
   int width = 112,
   int height = 112,
 }) async {
   final Size originalSize =
-      Size(image.width.toDouble(), image.height.toDouble());
+      Size(imageDimensions.width.toDouble(), imageDimensions.height.toDouble());
 
   final List<FaceDetectionAbsolute> absoluteFaces =
       relativeToAbsoluteDetections(
     relativeDetections: relativeFaces,
-    imageWidth: image.width,
-    imageHeight: image.height,
+    imageWidth: imageDimensions.width,
+    imageHeight: imageDimensions.height,
   );
 
   final alignedImagesFloat32List =
@@ -334,7 +348,7 @@ Future<(Float32List, List<AlignmentResult>, List<bool>, List<double>, Size)>
     alignmentResults.add(alignmentResult);
 
     _warpAffineFloat32List(
-      image,
+      imageDimensions,
       rawRgbaBytes,
       alignmentResult.affineMatrix,
       alignedImagesFloat32List,
@@ -368,14 +382,11 @@ Future<(Float32List, List<AlignmentResult>, List<bool>, List<double>, Size)>
 RGB _readPixelColor(
   int x,
   int y,
-  Image image,
+  Dimensions image,
   Uint8List rgbaBytes,
 ) {
   if (y < 0 || y >= image.height || x < 0 || x >= image.width) {
-    if (y < -maxKernelRadius ||
-        y >= image.height + maxKernelRadius ||
-        x < -maxKernelRadius ||
-        x >= image.width + maxKernelRadius) {
+    if (y < -2 || y >= image.height + 2 || x < -2 || x >= image.width + 2) {
       _logger.severe(
         '`readPixelColor`: Invalid pixel coordinates, out of bounds. x: $x, y: $y',
       );
@@ -393,29 +404,6 @@ RGB _readPixelColor(
   );
 }
 
-RGB _getPixelBlurred(
-  int x,
-  int y,
-  Image image,
-  Uint8List rgbaBytes,
-) {
-  double r = 0, g = 0, b = 0;
-  for (int ky = 0; ky < gaussianKernelSize; ky++) {
-    for (int kx = 0; kx < gaussianKernelSize; kx++) {
-      final int px = (x - gaussianKernelRadius + kx);
-      final int py = (y - gaussianKernelRadius + ky);
-
-      final RGB pixelRgbTuple = _readPixelColor(px, py, image, rgbaBytes);
-      final double weight = gaussianKernel[ky][kx];
-
-      r += pixelRgbTuple.$1 * weight;
-      g += pixelRgbTuple.$2 * weight;
-      b += pixelRgbTuple.$3 * weight;
-    }
-  }
-  return (r.round(), g.round(), b.round());
-}
-
 List<List<int>> _createGrayscaleIntMatrixFromNormalized2List(
   Float32List imageList,
   int startIndex, {
@@ -473,7 +461,7 @@ Future<Image> _cropImage(
 }
 
 void _warpAffineFloat32List(
-  Image inputImage,
+  Dimensions inputImageDimensions,
   Uint8List rawRgbaBytes,
   List<List<double>> affineMatrix,
   Float32List outputList,
@@ -528,8 +516,12 @@ void _warpAffineFloat32List(
       final num xOrigin = (xTrans - b00) * a00Prime + (yTrans - b10) * a01Prime;
       final num yOrigin = (xTrans - b00) * a10Prime + (yTrans - b10) * a11Prime;
 
-      final RGB pixel =
-          _getPixelBicubic(xOrigin, yOrigin, inputImage, rawRgbaBytes);
+      final RGB pixel = _getPixelBicubic(
+        xOrigin,
+        yOrigin,
+        inputImageDimensions,
+        rawRgbaBytes,
+      );
 
       // Set the new pixel
       outputList[startIndex + 3 * (yTrans * width + xTrans)] =
@@ -584,56 +576,14 @@ Future<List<Uint8List>> compressFaceThumbnails(Map args) async {
   }
 }
 
-RGB _getPixelBilinear(
+RGB _getPixelBicubic(
   num fx,
   num fy,
-  Image image,
-  Uint8List rawRgbaBytes, {
-  bool antiAlias = false,
-}) {
-  // Clamp to image boundaries
-  fx = fx.clamp(0, image.width - 1);
-  fy = fy.clamp(0, image.height - 1);
-
-  // Get the surrounding coordinates and their weights
-  final int x0 = fx.floor();
-  final int x1 = fx.ceil();
-  final int y0 = fy.floor();
-  final int y1 = fy.ceil();
-  final dx = fx - x0;
-  final dy = fy - y0;
-  final dx1 = 1.0 - dx;
-  final dy1 = 1.0 - dy;
-
-  // Get the original pixels (with gaussian blur if antialias)
-  final RGB Function(int, int, Image, Uint8List) readPixel =
-      antiAlias ? _getPixelBlurred : _readPixelColor;
-  final RGB pixel1 = readPixel(x0, y0, image, rawRgbaBytes);
-  final RGB pixel2 = readPixel(x1, y0, image, rawRgbaBytes);
-  final RGB pixel3 = readPixel(x0, y1, image, rawRgbaBytes);
-  final RGB pixel4 = readPixel(x1, y1, image, rawRgbaBytes);
-
-  int bilinear(
-    num val1,
-    num val2,
-    num val3,
-    num val4,
-  ) =>
-      (val1 * dx1 * dy1 + val2 * dx * dy1 + val3 * dx1 * dy + val4 * dx * dy)
-          .round();
-
-  // Calculate the weighted sum of pixels
-  final int r = bilinear(pixel1.$1, pixel2.$1, pixel3.$1, pixel4.$1);
-  final int g = bilinear(pixel1.$2, pixel2.$2, pixel3.$2, pixel4.$2);
-  final int b = bilinear(pixel1.$3, pixel2.$3, pixel3.$3, pixel4.$3);
-
-  return (r, g, b);
-}
-
-/// Get the pixel value using Bicubic Interpolation. Code taken mainly from https://github.com/brendan-duncan/image/blob/6e407612752ffdb90b28cd5863c7f65856349348/lib/src/image/image.dart#L697
-RGB _getPixelBicubic(num fx, num fy, Image image, Uint8List rawRgbaBytes) {
-  fx = fx.clamp(0, image.width - 1);
-  fy = fy.clamp(0, image.height - 1);
+  Dimensions imageDimensions,
+  Uint8List rawRgbaBytes,
+) {
+  fx = fx.clamp(0, imageDimensions.width - 1);
+  fy = fy.clamp(0, imageDimensions.height - 1);
 
   final x = fx.toInt() - (fx >= 0.0 ? 0 : 1);
   final px = x - 1;
@@ -652,62 +602,69 @@ RGB _getPixelBicubic(num fx, num fy, Image image, Uint8List rawRgbaBytes) {
               dx * dx * (2 * ipp - 5 * icp + 4 * inp - iap) +
               dx * dx * dx * (-ipp + 3 * icp - 3 * inp + iap));
 
-  final icc = _readPixelColor(x, y, image, rawRgbaBytes);
+  final icc = _readPixelColor(x, y, imageDimensions, rawRgbaBytes);
 
-  final ipp =
-      px < 0 || py < 0 ? icc : _readPixelColor(px, py, image, rawRgbaBytes);
-  final icp = px < 0 ? icc : _readPixelColor(x, py, image, rawRgbaBytes);
-  final inp = py < 0 || nx >= image.width
+  final ipp = px < 0 || py < 0
       ? icc
-      : _readPixelColor(nx, py, image, rawRgbaBytes);
-  final iap = ax >= image.width || py < 0
+      : _readPixelColor(px, py, imageDimensions, rawRgbaBytes);
+  final icp =
+      px < 0 ? icc : _readPixelColor(x, py, imageDimensions, rawRgbaBytes);
+  final inp = py < 0 || nx >= imageDimensions.width
       ? icc
-      : _readPixelColor(ax, py, image, rawRgbaBytes);
+      : _readPixelColor(nx, py, imageDimensions, rawRgbaBytes);
+  final iap = ax >= imageDimensions.width || py < 0
+      ? icc
+      : _readPixelColor(ax, py, imageDimensions, rawRgbaBytes);
 
   final ip0 = cubic(dx, ipp.$1, icp.$1, inp.$1, iap.$1);
   final ip1 = cubic(dx, ipp.$2, icp.$2, inp.$2, iap.$2);
   final ip2 = cubic(dx, ipp.$3, icp.$3, inp.$3, iap.$3);
   // final ip3 = cubic(dx, ipp.a, icp.a, inp.a, iap.a);
 
-  final ipc = px < 0 ? icc : _readPixelColor(px, y, image, rawRgbaBytes);
-  final inc =
-      nx >= image.width ? icc : _readPixelColor(nx, y, image, rawRgbaBytes);
-  final iac =
-      ax >= image.width ? icc : _readPixelColor(ax, y, image, rawRgbaBytes);
+  final ipc =
+      px < 0 ? icc : _readPixelColor(px, y, imageDimensions, rawRgbaBytes);
+  final inc = nx >= imageDimensions.width
+      ? icc
+      : _readPixelColor(nx, y, imageDimensions, rawRgbaBytes);
+  final iac = ax >= imageDimensions.width
+      ? icc
+      : _readPixelColor(ax, y, imageDimensions, rawRgbaBytes);
 
   final ic0 = cubic(dx, ipc.$1, icc.$1, inc.$1, iac.$1);
   final ic1 = cubic(dx, ipc.$2, icc.$2, inc.$2, iac.$2);
   final ic2 = cubic(dx, ipc.$3, icc.$3, inc.$3, iac.$3);
   // final ic3 = cubic(dx, ipc.a, icc.a, inc.a, iac.a);
 
-  final ipn = px < 0 || ny >= image.height
+  final ipn = px < 0 || ny >= imageDimensions.height
       ? icc
-      : _readPixelColor(px, ny, image, rawRgbaBytes);
-  final icn =
-      ny >= image.height ? icc : _readPixelColor(x, ny, image, rawRgbaBytes);
-  final inn = nx >= image.width || ny >= image.height
+      : _readPixelColor(px, ny, imageDimensions, rawRgbaBytes);
+  final icn = ny >= imageDimensions.height
       ? icc
-      : _readPixelColor(nx, ny, image, rawRgbaBytes);
-  final ian = ax >= image.width || ny >= image.height
+      : _readPixelColor(x, ny, imageDimensions, rawRgbaBytes);
+  final inn = nx >= imageDimensions.width || ny >= imageDimensions.height
       ? icc
-      : _readPixelColor(ax, ny, image, rawRgbaBytes);
+      : _readPixelColor(nx, ny, imageDimensions, rawRgbaBytes);
+  final ian = ax >= imageDimensions.width || ny >= imageDimensions.height
+      ? icc
+      : _readPixelColor(ax, ny, imageDimensions, rawRgbaBytes);
 
   final in0 = cubic(dx, ipn.$1, icn.$1, inn.$1, ian.$1);
   final in1 = cubic(dx, ipn.$2, icn.$2, inn.$2, ian.$2);
   final in2 = cubic(dx, ipn.$3, icn.$3, inn.$3, ian.$3);
   // final in3 = cubic(dx, ipn.a, icn.a, inn.a, ian.a);
 
-  final ipa = px < 0 || ay >= image.height
+  final ipa = px < 0 || ay >= imageDimensions.height
       ? icc
-      : _readPixelColor(px, ay, image, rawRgbaBytes);
-  final ica =
-      ay >= image.height ? icc : _readPixelColor(x, ay, image, rawRgbaBytes);
-  final ina = nx >= image.width || ay >= image.height
+      : _readPixelColor(px, ay, imageDimensions, rawRgbaBytes);
+  final ica = ay >= imageDimensions.height
       ? icc
-      : _readPixelColor(nx, ay, image, rawRgbaBytes);
-  final iaa = ax >= image.width || ay >= image.height
+      : _readPixelColor(x, ay, imageDimensions, rawRgbaBytes);
+  final ina = nx >= imageDimensions.width || ay >= imageDimensions.height
       ? icc
-      : _readPixelColor(ax, ay, image, rawRgbaBytes);
+      : _readPixelColor(nx, ay, imageDimensions, rawRgbaBytes);
+  final iaa = ax >= imageDimensions.width || ay >= imageDimensions.height
+      ? icc
+      : _readPixelColor(ax, ay, imageDimensions, rawRgbaBytes);
 
   final ia0 = cubic(dx, ipa.$1, ica.$1, ina.$1, iaa.$1);
   final ia1 = cubic(dx, ipa.$2, ica.$2, ina.$2, iaa.$2);
@@ -721,30 +678,3 @@ RGB _getPixelBicubic(num fx, num fy, Image image, Uint8List rawRgbaBytes) {
 
   return (c0, c1, c2); // (red, green, blue)
 }
-
-List<List<double>> create2DGaussianKernel(int size, double sigma) {
-  final List<List<double>> kernel =
-      List.generate(size, (_) => List<double>.filled(size, 0));
-  double sum = 0.0;
-  final int center = size ~/ 2;
-
-  for (int y = 0; y < size; y++) {
-    for (int x = 0; x < size; x++) {
-      final int dx = x - center;
-      final int dy = y - center;
-      final double g = (1 / (2 * pi * sigma * sigma)) *
-          exp(-(dx * dx + dy * dy) / (2 * sigma * sigma));
-      kernel[y][x] = g;
-      sum += g;
-    }
-  }
-
-  // Normalize the kernel
-  for (int y = 0; y < size; y++) {
-    for (int x = 0; x < size; x++) {
-      kernel[y][x] /= sum;
-    }
-  }
-
-  return kernel;
-}

mobile/apps/photos/lib/utils/ml_util.dart

@@ -1,5 +1,6 @@
 import "dart:io" show File, Platform;
 import "dart:math" as math show sqrt, min, max;
+import "dart:typed_data" show Uint8List;
 
 import "package:flutter/services.dart" show PlatformException;
 import "package:logging/logging.dart";
@@ -22,6 +23,8 @@ import "package:photos/services/machine_learning/ml_result.dart";
 import "package:photos/services/machine_learning/semantic_search/semantic_search_service.dart";
 import "package:photos/services/search_service.dart";
 import "package:photos/services/sync/local_sync_service.dart";
+import "package:photos/src/rust/api/image_processing.dart";
+import "package:photos/src/rust/custom/init_frb.dart";
 import "package:photos/utils/file_util.dart";
 import "package:photos/utils/image_ml_util.dart";
 import "package:photos/utils/network_util.dart";
@@ -410,27 +413,60 @@ Future<MLResult> analyzeImageStatic(Map args) async {
     _logger.info(
       "Start analyzeImageStatic for fileID $enteFileID (runFaces: $runFaces, runClip: $runClip)",
     );
+    await initFrb();
     final startTime = DateTime.now();
 
     // Decode the image once to use for both face detection and alignment
-    final decodedImage =
-        await decodeImageFromPath(imagePath, includeRgbaBytes: true);
-    final image = decodedImage.image;
-    final rawRgbaBytes = decodedImage.rawRgbaBytes!;
+    final bool decodeInRust = canRustDecodeImage(imagePath);
+    late (
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt,
+      Uint8List,
+      BigInt,
+      BigInt
+    ) rustResults;
+    if (decodeInRust) {
+      rustResults = await processImageMlFromPath(imagePath: imagePath);
+    } else {
+      final (image, decodedRgbaBytes) = await decodeImageFromPath(imagePath);
+      rustResults = await processImageMlFromData(
+        rgbaData: decodedRgbaBytes,
+        width: image.width,
+        height: image.height,
+      );
+    }
+    final (
+      rawRgbaBytes,
+      imageHeight,
+      imageWidth,
+      faceBytes,
+      faceHeight,
+      faceWidth,
+      clipBytes,
+      clipHeight,
+      clipWidth
+    ) = rustResults;
     final decodedImageSize =
-        Dimensions(height: image.height, width: image.width);
-    final result = MLResult.fromEnteFileID(enteFileID);
-    result.decodedImageSize = decodedImageSize;
+        Dimensions(height: imageHeight.toInt(), width: imageWidth.toInt());
     final decodeTime = DateTime.now();
     final decodeMs = decodeTime.difference(startTime).inMilliseconds;
 
+    final result = MLResult.fromEnteFileID(enteFileID);
+    result.decodedImageSize = decodedImageSize;
     String faceMsString = "", clipMsString = "";
     final pipelines = await Future.wait([
       runFaces
           ? FaceRecognitionService.runFacesPipeline(
               enteFileID,
-              image,
+              decodedImageSize,
               rawRgbaBytes,
+              faceBytes,
+              faceHeight.toInt(),
+              faceWidth.toInt(),
               faceDetectionAddress,
               faceEmbeddingAddress,
             ).then((result) {
@@ -442,8 +478,9 @@ Future<MLResult> analyzeImageStatic(Map args) async {
       runClip
           ? SemanticSearchService.runClipImage(
               enteFileID,
-              image,
-              rawRgbaBytes,
+              clipBytes,
+              clipHeight.toInt(),
+              clipWidth.toInt(),
               clipImageAddress,
             ).then((result) {
               clipMsString =

mobile/apps/photos/pubspec.lock

@@ -175,6 +175,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.4.1"
+  build_cli_annotations:
+    dependency: transitive
+    description:
+      name: build_cli_annotations
+      sha256: b59d2769769efd6c9ff6d4c4cede0be115a566afc591705c2040b707534b1172
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   build_config:
     dependency: transitive
     description:
@@ -639,6 +647,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  ffigen:
+    dependency: "direct dev"
+    description:
+      name: ffigen
+      sha256: a0ca4853028c6a9e4d9a0a40bb744fceb898c89d75931d08e87b3987d0087060
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.0.0"
   ffmpeg_kit_flutter:
     dependency: "direct main"
     description:
@@ -774,7 +790,7 @@ packages:
     source: hosted
     version: "0.6.0"
   flutter_driver:
-    dependency: "direct dev"
+    dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.0"
@@ -906,14 +922,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.6.0"
-  flutter_launcher_icons:
-    dependency: "direct dev"
-    description:
-      name: flutter_launcher_icons
-      sha256: "526faf84284b86a4cb36d20a5e45147747b7563d921373d4ee0559c54fcdbcea"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.13.1"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -1007,6 +1015,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.24"
+  flutter_rust_bridge:
+    dependency: "direct main"
+    description:
+      name: flutter_rust_bridge
+      sha256: "37ef40bc6f863652e865f0b2563ea07f0d3c58d8efad803cc01933a4b2ee067e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.1"
   flutter_secure_storage:
     dependency: "direct main"
     description:
@@ -2048,7 +2064,7 @@ packages:
     source: hosted
     version: "1.0.1"
   pool:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: pool
       sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
@@ -2081,7 +2097,7 @@ packages:
     source: hosted
     version: "2.1.0"
   protobuf:
-    dependency: "direct overridden"
+    dependency: "direct main"
     description:
       name: protobuf
       sha256: "68645b24e0716782e58948f8467fd42a880f255096a821f9e7d0ec625b00c84d"
@@ -2089,7 +2105,7 @@ packages:
     source: hosted
     version: "3.1.0"
   provider:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: provider
       sha256: c8a055ee5ce3fd98d6fc872478b03823ffdb448699c6ebdbbc71d59b596fd48c
@@ -2113,7 +2129,7 @@ packages:
     source: hosted
     version: "1.4.0"
   quiver:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: quiver
       sha256: ea0b925899e64ecdfbf9c7becb60d5b50e706ade44a85b2363be2a22d88117d2
@@ -2137,6 +2153,13 @@ packages:
       url: "https://github.com/KasemJaffer/receive_sharing_intent.git"
     source: git
     version: "1.8.1"
+  rust_lib_photos:
+    dependency: "direct main"
+    description:
+      path: rust_builder
+      relative: true
+    source: path
+    version: "0.0.1"
   rxdart:
     dependency: transitive
     description:
@@ -2977,6 +3000,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.3"
+  yaml_edit:
+    dependency: transitive
+    description:
+      name: yaml_edit
+      sha256: fb38626579fb345ad00e674e2af3a5c9b0cc4b9bfb8fd7f7ff322c7c9e62aef5
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
 sdks:
   dart: ">=3.7.0-0 <4.0.0"
   flutter: ">=3.24.0"

mobile/apps/photos/pubspec.yaml

@@ -95,6 +95,7 @@ dependencies:
   flutter_map: ^6.2.0
   flutter_map_marker_cluster: ^1.3.6
   flutter_password_strength: ^0.1.6
+  flutter_rust_bridge: 2.11.1
   # Do not upgrade this package unless this issue is resolved:
   # https://github.com/juliansteenbakker/flutter_secure_storage/issues/870
   # On v9.2.4, keys related to lockscreen persist even after reintsall. For context see:
@@ -169,14 +170,20 @@ dependencies:
   photo_view: ^0.14.0
   pinput: ^5.0.0
   pointycastle: ^3.7.3
+  pool: ^1.5.1
   privacy_screen: # pub.dev is behind
     git:
       url: https://github.com/eddyuan/privacy_screen.git
       ref: 855418e
+  protobuf: ^3.1.0
+  provider: ^6.0.0
+  quiver: ^3.0.1
   receive_sharing_intent: # pub.dev is behind
     git:
       url: https://github.com/KasemJaffer/receive_sharing_intent.git
       ref: 2cea396
+  rust_lib_photos:
+    path: rust_builder
   screenshot: ^3.0.0
   scrollable_positioned_list: ^0.3.5
   sentry: ^8.14.1
@@ -257,9 +264,7 @@ flutter_intl:
 
 dev_dependencies:
   build_runner: ^2.4.7
-  flutter_driver:
-    sdk: flutter
-  flutter_launcher_icons: ^0.13.1
+  ffigen: ^15.0.0
   flutter_lints: ^3.0.1
   flutter_native_splash: ^2.4.4
   flutter_test:

mobile/apps/photos/rust/.gitignore

@@ -0,0 +1 @@
+/target

mobile/apps/photos/rust/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "rust_lib_photos"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "staticlib"]
+
+[dependencies]
+flutter_rust_bridge = "=2.11.1"
+image = "0.25.4"
+resize = "0.8.7"
+rgb = "0.8.50"
+bytemuck = "1.16.0"

mobile/apps/photos/rust/src/api/image_processing.rs

@@ -0,0 +1,151 @@
+use image::ImageBuffer;
+use resize::{px::RGB, Pixel::RGB8, Type::Lanczos3, Type::Mitchell};
+use rgb::FromSlice;
+
+pub fn process_image_ml_from_path(
+    image_path: &str,
+) -> (
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+) {
+    // Load the image from the path (~200ms)
+    let img: image::DynamicImage = image::open(image_path).expect("Failed to open image");
+
+    // Process the image
+    let results = process_image_ml(img);
+
+    results
+}
+
+pub fn process_image_ml_from_data(
+    rgba_data: Vec<u8>,
+    width: u32,
+    height: u32,
+) -> (
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+) {
+    // Load the image from the data
+    let img = image::DynamicImage::from(
+        ImageBuffer::<image::Rgb<u8>, _>::from_raw(width, height, rgba_data)
+            .expect("Failed to create image buffer"),
+    );
+
+    // Process the image
+    let results = process_image_ml(img);
+
+    results
+}
+
+fn process_image_ml(
+    img: image::DynamicImage,
+) -> (
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+    Vec<u8>,
+    usize,
+    usize,
+) {
+    // Get dimensions for resized images (0ms)
+    let (width, height) = (img.width() as usize, img.height() as usize);
+    let scale_face = f32::min(640.0 / width as f32, 640.0 / height as f32);
+    let scale_clip = f32::max(256.0 / width as f32, 256.0 / height as f32);
+    let (new_width_face, new_height_face) = (
+        f32::round(width as f32 * scale_face) as usize,
+        f32::round(height as f32 * scale_face) as usize,
+    );
+    let (new_width_clip, new_height_clip) = (
+        f32::round(width as f32 * scale_clip) as usize,
+        f32::round(height as f32 * scale_clip) as usize,
+    );
+    let mut interpolation_face = Lanczos3;
+    if scale_face > 1.0 {
+        interpolation_face = Mitchell;
+    }
+    let mut interpolation_clip = Lanczos3;
+    if scale_clip > 1.0 {
+        interpolation_clip = Mitchell;
+    }
+
+    // Convert image to RGB8 (~150ms)
+    let rgba_decoded = img.to_rgba8().to_vec();
+    let rgb_img = img.into_rgb8();
+
+    // Convert RGB8 to Vec<RGB> (~30ms)
+    let rgb_vec = rgb_img.to_vec();
+
+    // Create resizer (~20ms)
+    let mut resizer_face = resize::new(
+        width,
+        height,
+        new_width_face,
+        new_height_face,
+        RGB8,
+        interpolation_face,
+    )
+    .unwrap();
+    let mut resizer_clip = resize::new(
+        width,
+        height,
+        new_width_clip,
+        new_height_clip,
+        RGB8,
+        interpolation_clip,
+    )
+    .unwrap();
+
+    // Create buffer for resized image (~120ms)
+    let mut dst_face = vec![RGB::new(0, 0, 0); new_width_face * new_height_face];
+    let mut dst_clip = vec![RGB::new(0, 0, 0); new_width_clip * new_height_clip];
+
+    // Resize the image (~120ms)
+    resizer_face
+        .resize(rgb_vec.as_rgb(), &mut dst_face)
+        .unwrap();
+    resizer_clip
+        .resize(rgb_vec.as_rgb(), &mut dst_clip)
+        .unwrap();
+
+    // Return resized images as Vec<u8> (~120ms)
+    let mut result_face = Vec::with_capacity(new_width_face * new_height_face * 3);
+    for pixel in dst_face {
+        result_face.push(pixel.r);
+        result_face.push(pixel.g);
+        result_face.push(pixel.b);
+    }
+    let mut result_clip = Vec::with_capacity(new_width_clip * new_height_clip * 3);
+    for pixel in dst_clip {
+        result_clip.push(pixel.r);
+        result_clip.push(pixel.g);
+        result_clip.push(pixel.b);
+    }
+    (
+        rgba_decoded,
+        height,
+        width,
+        result_face,
+        new_height_face,
+        new_width_face,
+        result_clip,
+        new_height_clip,
+        new_width_clip,
+    )
+}

mobile/apps/photos/rust/src/api/mod.rs

@@ -0,0 +1,2 @@
+pub mod simple;
+pub mod image_processing;

mobile/apps/photos/rust/src/api/simple.rs

@@ -0,0 +1,10 @@
+#[flutter_rust_bridge::frb(sync)] // Synchronous mode for simplicity of the demo
+pub fn greet(name: String) -> String {
+    format!("Hello, {name}!")
+}
+
+#[flutter_rust_bridge::frb(init)]
+pub fn init_app() {
+    // Default utilities - feel free to customize
+    flutter_rust_bridge::setup_default_user_utils();
+}

mobile/apps/photos/rust/src/frb_generated.rs

@@ -0,0 +1,517 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.11.1.
+
+#![allow(
+    non_camel_case_types,
+    unused,
+    non_snake_case,
+    clippy::needless_return,
+    clippy::redundant_closure_call,
+    clippy::redundant_closure,
+    clippy::useless_conversion,
+    clippy::unit_arg,
+    clippy::unused_unit,
+    clippy::double_parens,
+    clippy::let_and_return,
+    clippy::too_many_arguments,
+    clippy::match_single_binding,
+    clippy::clone_on_copy,
+    clippy::let_unit_value,
+    clippy::deref_addrof,
+    clippy::explicit_auto_deref,
+    clippy::borrow_deref_ref,
+    clippy::needless_borrow
+)]
+
+// Section: imports
+
+use flutter_rust_bridge::for_generated::byteorder::{NativeEndian, ReadBytesExt, WriteBytesExt};
+use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+// Section: boilerplate
+
+flutter_rust_bridge::frb_generated_boilerplate!(
+    default_stream_sink_codec = DcoCodec,
+    default_rust_opaque = RustOpaqueNom,
+    default_rust_auto_opaque = RustAutoOpaqueNom,
+);
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_VERSION: &str = "2.11.1";
+pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH: i32 = 1140226238;
+
+// Section: executor
+
+flutter_rust_bridge::frb_generated_default_handler!();
+
+// Section: wire_funcs
+
+fn wire__crate__api__simple__greet_impl(
+    name: impl CstDecode<String>,
+) -> flutter_rust_bridge::for_generated::WireSyncRust2DartDco {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_sync::<flutter_rust_bridge::for_generated::DcoCodec, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "greet",
+            port: None,
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Sync,
+        },
+        move || {
+            let api_name = name.cst_decode();
+            transform_result_dco::<_, _, ()>((move || {
+                let output_ok = Result::<_, ()>::Ok(crate::api::simple::greet(api_name))?;
+                Ok(output_ok)
+            })())
+        },
+    )
+}
+fn wire__crate__api__simple__init_app_impl(port_: flutter_rust_bridge::for_generated::MessagePort) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::DcoCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "init_app",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            move |context| {
+                transform_result_dco::<_, _, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok({
+                        crate::api::simple::init_app();
+                    })?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+fn wire__crate__api__image_processing__process_image_ml_from_data_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    rgba_data: impl CstDecode<Vec<u8>>,
+    width: impl CstDecode<u32>,
+    height: impl CstDecode<u32>,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::DcoCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "process_image_ml_from_data",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let api_rgba_data = rgba_data.cst_decode();
+            let api_width = width.cst_decode();
+            let api_height = height.cst_decode();
+            move |context| {
+                transform_result_dco::<_, _, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok(
+                        crate::api::image_processing::process_image_ml_from_data(
+                            api_rgba_data,
+                            api_width,
+                            api_height,
+                        ),
+                    )?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+fn wire__crate__api__image_processing__process_image_ml_from_path_impl(
+    port_: flutter_rust_bridge::for_generated::MessagePort,
+    image_path: impl CstDecode<String>,
+) {
+    FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::DcoCodec, _, _>(
+        flutter_rust_bridge::for_generated::TaskInfo {
+            debug_name: "process_image_ml_from_path",
+            port: Some(port_),
+            mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
+        },
+        move || {
+            let api_image_path = image_path.cst_decode();
+            move |context| {
+                transform_result_dco::<_, _, ()>((move || {
+                    let output_ok = Result::<_, ()>::Ok(
+                        crate::api::image_processing::process_image_ml_from_path(&api_image_path),
+                    )?;
+                    Ok(output_ok)
+                })())
+            }
+        },
+    )
+}
+
+// Section: dart2rust
+
+impl CstDecode<u32> for u32 {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    fn cst_decode(self) -> u32 {
+        self
+    }
+}
+impl CstDecode<u8> for u8 {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    fn cst_decode(self) -> u8 {
+        self
+    }
+}
+impl CstDecode<usize> for usize {
+    // Codec=Cst (C-struct based), see doc to use other codecs
+    fn cst_decode(self) -> usize {
+        self
+    }
+}
+impl SseDecode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut inner = <Vec<u8>>::sse_decode(deserializer);
+        return String::from_utf8(inner).unwrap();
+    }
+}
+
+impl SseDecode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut len_ = <i32>::sse_decode(deserializer);
+        let mut ans_ = vec![];
+        for idx_ in 0..len_ {
+            ans_.push(<u8>::sse_decode(deserializer));
+        }
+        return ans_;
+    }
+}
+
+impl SseDecode
+    for (
+        Vec<u8>,
+        usize,
+        usize,
+        Vec<u8>,
+        usize,
+        usize,
+        Vec<u8>,
+        usize,
+        usize,
+    )
+{
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        let mut var_field0 = <Vec<u8>>::sse_decode(deserializer);
+        let mut var_field1 = <usize>::sse_decode(deserializer);
+        let mut var_field2 = <usize>::sse_decode(deserializer);
+        let mut var_field3 = <Vec<u8>>::sse_decode(deserializer);
+        let mut var_field4 = <usize>::sse_decode(deserializer);
+        let mut var_field5 = <usize>::sse_decode(deserializer);
+        let mut var_field6 = <Vec<u8>>::sse_decode(deserializer);
+        let mut var_field7 = <usize>::sse_decode(deserializer);
+        let mut var_field8 = <usize>::sse_decode(deserializer);
+        return (
+            var_field0, var_field1, var_field2, var_field3, var_field4, var_field5, var_field6,
+            var_field7, var_field8,
+        );
+    }
+}
+
+impl SseDecode for u32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u32::<NativeEndian>().unwrap()
+    }
+}
+
+impl SseDecode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap()
+    }
+}
+
+impl SseDecode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {}
+}
+
+impl SseDecode for usize {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u64::<NativeEndian>().unwrap() as _
+    }
+}
+
+impl SseDecode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_i32::<NativeEndian>().unwrap()
+    }
+}
+
+impl SseDecode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_decode(deserializer: &mut flutter_rust_bridge::for_generated::SseDeserializer) -> Self {
+        deserializer.cursor.read_u8().unwrap() != 0
+    }
+}
+
+fn pde_ffi_dispatcher_primary_impl(
+    func_id: i32,
+    port: flutter_rust_bridge::for_generated::MessagePort,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        _ => unreachable!(),
+    }
+}
+
+fn pde_ffi_dispatcher_sync_impl(
+    func_id: i32,
+    ptr: flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
+    rust_vec_len: i32,
+    data_len: i32,
+) -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
+    // Codec=Pde (Serialization + dispatch), see doc to use other codecs
+    match func_id {
+        _ => unreachable!(),
+    }
+}
+
+// Section: rust2dart
+
+impl SseEncode for String {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <Vec<u8>>::sse_encode(self.into_bytes(), serializer);
+    }
+}
+
+impl SseEncode for Vec<u8> {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <i32>::sse_encode(self.len() as _, serializer);
+        for item in self {
+            <u8>::sse_encode(item, serializer);
+        }
+    }
+}
+
+impl SseEncode
+    for (
+        Vec<u8>,
+        usize,
+        usize,
+        Vec<u8>,
+        usize,
+        usize,
+        Vec<u8>,
+        usize,
+        usize,
+    )
+{
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        <Vec<u8>>::sse_encode(self.0, serializer);
+        <usize>::sse_encode(self.1, serializer);
+        <usize>::sse_encode(self.2, serializer);
+        <Vec<u8>>::sse_encode(self.3, serializer);
+        <usize>::sse_encode(self.4, serializer);
+        <usize>::sse_encode(self.5, serializer);
+        <Vec<u8>>::sse_encode(self.6, serializer);
+        <usize>::sse_encode(self.7, serializer);
+        <usize>::sse_encode(self.8, serializer);
+    }
+}
+
+impl SseEncode for u32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u32::<NativeEndian>(self).unwrap();
+    }
+}
+
+impl SseEncode for u8 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self).unwrap();
+    }
+}
+
+impl SseEncode for () {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {}
+}
+
+impl SseEncode for usize {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer
+            .cursor
+            .write_u64::<NativeEndian>(self as _)
+            .unwrap();
+    }
+}
+
+impl SseEncode for i32 {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_i32::<NativeEndian>(self).unwrap();
+    }
+}
+
+impl SseEncode for bool {
+    // Codec=Sse (Serialization based), see doc to use other codecs
+    fn sse_encode(self, serializer: &mut flutter_rust_bridge::for_generated::SseSerializer) {
+        serializer.cursor.write_u8(self as _).unwrap();
+    }
+}
+
+#[cfg(not(target_family = "wasm"))]
+mod io {
+    // This file is automatically generated, so please do not edit it.
+    // @generated by `flutter_rust_bridge`@ 2.11.1.
+
+    // Section: imports
+
+    use super::*;
+    use flutter_rust_bridge::for_generated::byteorder::{
+        NativeEndian, ReadBytesExt, WriteBytesExt,
+    };
+    use flutter_rust_bridge::for_generated::{transform_result_dco, Lifetimeable, Lockable};
+    use flutter_rust_bridge::{Handler, IntoIntoDart};
+
+    // Section: boilerplate
+
+    flutter_rust_bridge::frb_generated_boilerplate_io!();
+
+    // Section: dart2rust
+
+    impl CstDecode<String> for *mut wire_cst_list_prim_u_8_strict {
+        // Codec=Cst (C-struct based), see doc to use other codecs
+        fn cst_decode(self) -> String {
+            let vec: Vec<u8> = self.cst_decode();
+            String::from_utf8(vec).unwrap()
+        }
+    }
+    impl CstDecode<Vec<u8>> for *mut wire_cst_list_prim_u_8_loose {
+        // Codec=Cst (C-struct based), see doc to use other codecs
+        fn cst_decode(self) -> Vec<u8> {
+            unsafe {
+                let wrap = flutter_rust_bridge::for_generated::box_from_leak_ptr(self);
+                flutter_rust_bridge::for_generated::vec_from_leak_ptr(wrap.ptr, wrap.len)
+            }
+        }
+    }
+    impl CstDecode<Vec<u8>> for *mut wire_cst_list_prim_u_8_strict {
+        // Codec=Cst (C-struct based), see doc to use other codecs
+        fn cst_decode(self) -> Vec<u8> {
+            unsafe {
+                let wrap = flutter_rust_bridge::for_generated::box_from_leak_ptr(self);
+                flutter_rust_bridge::for_generated::vec_from_leak_ptr(wrap.ptr, wrap.len)
+            }
+        }
+    }
+    impl CstDecode<(Vec<u8>,usize,usize,Vec<u8>,usize,usize,Vec<u8>,usize,usize,)> for wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize {
+            // Codec=Cst (C-struct based), see doc to use other codecs
+            fn cst_decode(self) -> (Vec<u8>,usize,usize,Vec<u8>,usize,usize,Vec<u8>,usize,usize,) {
+                (self.field0.cst_decode(),self.field1.cst_decode(),self.field2.cst_decode(),self.field3.cst_decode(),self.field4.cst_decode(),self.field5.cst_decode(),self.field6.cst_decode(),self.field7.cst_decode(),self.field8.cst_decode(),)
+            }
+        }
+    impl NewWithNullPtr for wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize {
+            fn new_with_null_ptr() -> Self {
+                Self { field0: core::ptr::null_mut(),
+field1: Default::default(),
+field2: Default::default(),
+field3: core::ptr::null_mut(),
+field4: Default::default(),
+field5: Default::default(),
+field6: core::ptr::null_mut(),
+field7: Default::default(),
+field8: Default::default(), }
+            }
+        }
+    impl Default for wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize {
+            fn default() -> Self {
+                Self::new_with_null_ptr()
+            }
+        }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_wire__crate__api__simple__greet(
+        name: *mut wire_cst_list_prim_u_8_strict,
+    ) -> flutter_rust_bridge::for_generated::WireSyncRust2DartDco {
+        wire__crate__api__simple__greet_impl(name)
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_wire__crate__api__simple__init_app(port_: i64) {
+        wire__crate__api__simple__init_app_impl(port_)
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_wire__crate__api__image_processing__process_image_ml_from_data(
+        port_: i64,
+        rgba_data: *mut wire_cst_list_prim_u_8_loose,
+        width: u32,
+        height: u32,
+    ) {
+        wire__crate__api__image_processing__process_image_ml_from_data_impl(
+            port_, rgba_data, width, height,
+        )
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_wire__crate__api__image_processing__process_image_ml_from_path(
+        port_: i64,
+        image_path: *mut wire_cst_list_prim_u_8_strict,
+    ) {
+        wire__crate__api__image_processing__process_image_ml_from_path_impl(port_, image_path)
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_cst_new_list_prim_u_8_loose(
+        len: i32,
+    ) -> *mut wire_cst_list_prim_u_8_loose {
+        let ans = wire_cst_list_prim_u_8_loose {
+            ptr: flutter_rust_bridge::for_generated::new_leak_vec_ptr(Default::default(), len),
+            len,
+        };
+        flutter_rust_bridge::for_generated::new_leak_box_ptr(ans)
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn frbgen_photos_cst_new_list_prim_u_8_strict(
+        len: i32,
+    ) -> *mut wire_cst_list_prim_u_8_strict {
+        let ans = wire_cst_list_prim_u_8_strict {
+            ptr: flutter_rust_bridge::for_generated::new_leak_vec_ptr(Default::default(), len),
+            len,
+        };
+        flutter_rust_bridge::for_generated::new_leak_box_ptr(ans)
+    }
+
+    #[repr(C)]
+    #[derive(Clone, Copy)]
+    pub struct wire_cst_list_prim_u_8_loose {
+        ptr: *mut u8,
+        len: i32,
+    }
+    #[repr(C)]
+    #[derive(Clone, Copy)]
+    pub struct wire_cst_list_prim_u_8_strict {
+        ptr: *mut u8,
+        len: i32,
+    }
+    #[repr(C)]
+    #[derive(Clone, Copy)]
+    pub struct wire_cst_record_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize_list_prim_u_8_strict_usize_usize
+    {
+        field0: *mut wire_cst_list_prim_u_8_strict,
+        field1: usize,
+        field2: usize,
+        field3: *mut wire_cst_list_prim_u_8_strict,
+        field4: usize,
+        field5: usize,
+        field6: *mut wire_cst_list_prim_u_8_strict,
+        field7: usize,
+        field8: usize,
+    }
+}
+#[cfg(not(target_family = "wasm"))]
+pub use io::*;

mobile/apps/photos/rust/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod api;
+mod frb_generated;

mobile/apps/photos/rust_builder/.gitignore

@@ -0,0 +1,29 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+build/

mobile/apps/photos/rust_builder/README.md

@@ -0,0 +1 @@
+Please ignore this folder, which is just glue to build Rust with Flutter.

mobile/apps/photos/rust_builder/android/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.cxx

mobile/apps/photos/rust_builder/android/build.gradle

@@ -0,0 +1,56 @@
+// The Android Gradle Plugin builds the native code with the Android NDK.
+
+group 'com.flutter_rust_bridge.rust_lib_photos'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        // The Android Gradle Plugin knows how to build native code with the NDK.
+        classpath 'com.android.tools.build:gradle:7.3.0'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.flutter_rust_bridge.rust_lib_photos'
+    }
+
+    // Bumping the plugin compileSdkVersion requires all clients of this plugin
+    // to bump the version in their app.
+    compileSdkVersion 33
+
+    // Use the NDK version
+    // declared in /android/app/build.gradle file of the Flutter project.
+    // Replace it with a version number if this plugin requires a specfic NDK version.
+    // (e.g. ndkVersion "23.1.7779620")
+    ndkVersion android.ndkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        minSdkVersion 19
+    }
+}
+
+apply from: "../cargokit/gradle/plugin.gradle"
+cargokit {
+    manifestDir = "../../rust"
+    libname = "rust_lib_photos"
+}

mobile/apps/photos/rust_builder/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'rust_lib_photos'

mobile/apps/photos/rust_builder/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.flutter_rust_bridge.rust_lib_photos">
+</manifest>

mobile/apps/photos/rust_builder/cargokit/.gitignore

@@ -0,0 +1,4 @@
+target
+.dart_tool
+*.iml
+!pubspec.lock

mobile/apps/photos/rust_builder/cargokit/README

@@ -0,0 +1,11 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+Experimental repository to provide glue for seamlessly integrating cargo build
+with flutter plugins and packages.
+
+See https://matejknopp.com/post/flutter_plugin_in_rust_with_no_prebuilt_binaries/
+for a tutorial on how to use Cargokit.
+
+Example plugin available at https://github.com/irondash/hello_rust_ffi_plugin.
+

mobile/apps/photos/rust_builder/cargokit/build_pod.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+set -e
+
+BASEDIR=$(dirname "$0")
+
+# Workaround for https://github.com/dart-lang/pub/issues/4010
+BASEDIR=$(cd "$BASEDIR" ; pwd -P)
+
+# Remove XCode SDK from path. Otherwise this breaks tool compilation when building iOS project
+NEW_PATH=`echo $PATH | tr ":" "\n" | grep -v "Contents/Developer/" | tr "\n" ":"`
+
+export PATH=${NEW_PATH%?} # remove trailing :
+
+env
+
+# Platform name (macosx, iphoneos, iphonesimulator)
+export CARGOKIT_DARWIN_PLATFORM_NAME=$PLATFORM_NAME
+
+# Arctive architectures (arm64, armv7, x86_64), space separated.
+export CARGOKIT_DARWIN_ARCHS=$ARCHS
+
+# Current build configuration (Debug, Release)
+export CARGOKIT_CONFIGURATION=$CONFIGURATION
+
+# Path to directory containing Cargo.toml.
+export CARGOKIT_MANIFEST_DIR=$PODS_TARGET_SRCROOT/$1
+
+# Temporary directory for build artifacts.
+export CARGOKIT_TARGET_TEMP_DIR=$TARGET_TEMP_DIR
+
+# Output directory for final artifacts.
+export CARGOKIT_OUTPUT_DIR=$PODS_CONFIGURATION_BUILD_DIR/$PRODUCT_NAME
+
+# Directory to store built tool artifacts.
+export CARGOKIT_TOOL_TEMP_DIR=$TARGET_TEMP_DIR/build_tool
+
+# Directory inside root project. Not necessarily the top level directory of root project.
+export CARGOKIT_ROOT_PROJECT_DIR=$SRCROOT
+
+FLUTTER_EXPORT_BUILD_ENVIRONMENT=(
+  "$PODS_ROOT/../Flutter/ephemeral/flutter_export_environment.sh" # macOS
+  "$PODS_ROOT/../Flutter/flutter_export_environment.sh" # iOS
+)
+
+for path in "${FLUTTER_EXPORT_BUILD_ENVIRONMENT[@]}"
+do
+  if [[ -f "$path" ]]; then
+    source "$path"
+  fi
+done
+
+sh "$BASEDIR/run_build_tool.sh" build-pod "$@"
+
+# Make a symlink from built framework to phony file, which will be used as input to
+# build script. This should force rebuild (podspec currently doesn't support alwaysOutOfDate
+# attribute on custom build phase)
+ln -fs "$OBJROOT/XCBuildData/build.db" "${BUILT_PRODUCTS_DIR}/cargokit_phony"
+ln -fs "${BUILT_PRODUCTS_DIR}/${EXECUTABLE_PATH}" "${BUILT_PRODUCTS_DIR}/cargokit_phony_out"

mobile/apps/photos/rust_builder/cargokit/build_tool/README.md

@@ -0,0 +1,5 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+A sample command-line application with an entrypoint in `bin/`, library code
+in `lib/`, and example unit test in `test/`.

mobile/apps/photos/rust_builder/cargokit/build_tool/analysis_options.yaml

@@ -0,0 +1,34 @@
+# This is copied from Cargokit (which is the official way to use it currently)
+# Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+linter:
+  rules:
+    - prefer_relative_imports
+    - directives_ordering
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

mobile/apps/photos/rust_builder/cargokit/build_tool/bin/build_tool.dart

@@ -0,0 +1,8 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'package:build_tool/build_tool.dart' as build_tool;
+
+void main(List<String> arguments) {
+  build_tool.runMain(arguments);
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/build_tool.dart

@@ -0,0 +1,8 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'src/build_tool.dart' as build_tool;
+
+Future<void> runMain(List<String> args) async {
+  return build_tool.runMain(args);
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/android_environment.dart

@@ -0,0 +1,195 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+import 'dart:isolate';
+import 'dart:math' as math;
+
+import 'package:collection/collection.dart';
+import 'package:path/path.dart' as path;
+import 'package:version/version.dart';
+
+import 'target.dart';
+import 'util.dart';
+
+class AndroidEnvironment {
+  AndroidEnvironment({
+    required this.sdkPath,
+    required this.ndkVersion,
+    required this.minSdkVersion,
+    required this.targetTempDir,
+    required this.target,
+  });
+
+  static void clangLinkerWrapper(List<String> args) {
+    final clang = Platform.environment['_CARGOKIT_NDK_LINK_CLANG'];
+    if (clang == null) {
+      throw Exception(
+          "cargo-ndk rustc linker: didn't find _CARGOKIT_NDK_LINK_CLANG env var");
+    }
+    final target = Platform.environment['_CARGOKIT_NDK_LINK_TARGET'];
+    if (target == null) {
+      throw Exception(
+          "cargo-ndk rustc linker: didn't find _CARGOKIT_NDK_LINK_TARGET env var");
+    }
+
+    runCommand(clang, [
+      target,
+      ...args,
+    ]);
+  }
+
+  /// Full path to Android SDK.
+  final String sdkPath;
+
+  /// Full version of Android NDK.
+  final String ndkVersion;
+
+  /// Minimum supported SDK version.
+  final int minSdkVersion;
+
+  /// Target directory for build artifacts.
+  final String targetTempDir;
+
+  /// Target being built.
+  final Target target;
+
+  bool ndkIsInstalled() {
+    final ndkPath = path.join(sdkPath, 'ndk', ndkVersion);
+    final ndkPackageXml = File(path.join(ndkPath, 'package.xml'));
+    return ndkPackageXml.existsSync();
+  }
+
+  void installNdk({
+    required String javaHome,
+  }) {
+    final sdkManagerExtension = Platform.isWindows ? '.bat' : '';
+    final sdkManager = path.join(
+      sdkPath,
+      'cmdline-tools',
+      'latest',
+      'bin',
+      'sdkmanager$sdkManagerExtension',
+    );
+
+    log.info('Installing NDK $ndkVersion');
+    runCommand(sdkManager, [
+      '--install',
+      'ndk;$ndkVersion',
+    ], environment: {
+      'JAVA_HOME': javaHome,
+    });
+  }
+
+  Future<Map<String, String>> buildEnvironment() async {
+    final hostArch = Platform.isMacOS
+        ? "darwin-x86_64"
+        : (Platform.isLinux ? "linux-x86_64" : "windows-x86_64");
+
+    final ndkPath = path.join(sdkPath, 'ndk', ndkVersion);
+    final toolchainPath = path.join(
+      ndkPath,
+      'toolchains',
+      'llvm',
+      'prebuilt',
+      hostArch,
+      'bin',
+    );
+
+    final minSdkVersion =
+        math.max(target.androidMinSdkVersion!, this.minSdkVersion);
+
+    final exe = Platform.isWindows ? '.exe' : '';
+
+    final arKey = 'AR_${target.rust}';
+    final arValue = ['${target.rust}-ar', 'llvm-ar', 'llvm-ar.exe']
+        .map((e) => path.join(toolchainPath, e))
+        .firstWhereOrNull((element) => File(element).existsSync());
+    if (arValue == null) {
+      throw Exception('Failed to find ar for $target in $toolchainPath');
+    }
+
+    final targetArg = '--target=${target.rust}$minSdkVersion';
+
+    final ccKey = 'CC_${target.rust}';
+    final ccValue = path.join(toolchainPath, 'clang$exe');
+    final cfFlagsKey = 'CFLAGS_${target.rust}';
+    final cFlagsValue = targetArg;
+
+    final cxxKey = 'CXX_${target.rust}';
+    final cxxValue = path.join(toolchainPath, 'clang++$exe');
+    final cxxFlagsKey = 'CXXFLAGS_${target.rust}';
+    final cxxFlagsValue = targetArg;
+
+    final linkerKey =
+        'cargo_target_${target.rust.replaceAll('-', '_')}_linker'.toUpperCase();
+
+    final ranlibKey = 'RANLIB_${target.rust}';
+    final ranlibValue = path.join(toolchainPath, 'llvm-ranlib$exe');
+
+    final ndkVersionParsed = Version.parse(ndkVersion);
+    final rustFlagsKey = 'CARGO_ENCODED_RUSTFLAGS';
+    final rustFlagsValue = _libGccWorkaround(targetTempDir, ndkVersionParsed);
+
+    final runRustTool =
+        Platform.isWindows ? 'run_build_tool.cmd' : 'run_build_tool.sh';
+
+    final packagePath = (await Isolate.resolvePackageUri(
+            Uri.parse('package:build_tool/buildtool.dart')))!
+        .toFilePath();
+    final selfPath = path.canonicalize(path.join(
+      packagePath,
+      '..',
+      '..',
+      '..',
+      runRustTool,
+    ));
+
+    // Make sure that run_build_tool is working properly even initially launched directly
+    // through dart run.
+    final toolTempDir =
+        Platform.environment['CARGOKIT_TOOL_TEMP_DIR'] ?? targetTempDir;
+
+    return {
+      arKey: arValue,
+      ccKey: ccValue,
+      cfFlagsKey: cFlagsValue,
+      cxxKey: cxxValue,
+      cxxFlagsKey: cxxFlagsValue,
+      ranlibKey: ranlibValue,
+      rustFlagsKey: rustFlagsValue,
+      linkerKey: selfPath,
+      // Recognized by main() so we know when we're acting as a wrapper
+      '_CARGOKIT_NDK_LINK_TARGET': targetArg,
+      '_CARGOKIT_NDK_LINK_CLANG': ccValue,
+      'CARGOKIT_TOOL_TEMP_DIR': toolTempDir,
+    };
+  }
+
+  // Workaround for libgcc missing in NDK23, inspired by cargo-ndk
+  String _libGccWorkaround(String buildDir, Version ndkVersion) {
+    final workaroundDir = path.join(
+      buildDir,
+      'cargokit',
+      'libgcc_workaround',
+      '${ndkVersion.major}',
+    );
+    Directory(workaroundDir).createSync(recursive: true);
+    if (ndkVersion.major >= 23) {
+      File(path.join(workaroundDir, 'libgcc.a'))
+          .writeAsStringSync('INPUT(-lunwind)');
+    } else {
+      // Other way around, untested, forward libgcc.a from libunwind once Rust
+      // gets updated for NDK23+.
+      File(path.join(workaroundDir, 'libunwind.a'))
+          .writeAsStringSync('INPUT(-lgcc)');
+    }
+
+    var rustFlags = Platform.environment['CARGO_ENCODED_RUSTFLAGS'] ?? '';
+    if (rustFlags.isNotEmpty) {
+      rustFlags = '$rustFlags\x1f';
+    }
+    rustFlags = '$rustFlags-L\x1f$workaroundDir';
+    return rustFlags;
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/artifacts_provider.dart

@@ -0,0 +1,266 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:http/http.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'builder.dart';
+import 'crate_hash.dart';
+import 'options.dart';
+import 'precompile_binaries.dart';
+import 'rustup.dart';
+import 'target.dart';
+
+class Artifact {
+  /// File system location of the artifact.
+  final String path;
+
+  /// Actual file name that the artifact should have in destination folder.
+  final String finalFileName;
+
+  AritifactType get type {
+    if (finalFileName.endsWith('.dll') ||
+        finalFileName.endsWith('.dll.lib') ||
+        finalFileName.endsWith('.pdb') ||
+        finalFileName.endsWith('.so') ||
+        finalFileName.endsWith('.dylib')) {
+      return AritifactType.dylib;
+    } else if (finalFileName.endsWith('.lib') || finalFileName.endsWith('.a')) {
+      return AritifactType.staticlib;
+    } else {
+      throw Exception('Unknown artifact type for $finalFileName');
+    }
+  }
+
+  Artifact({
+    required this.path,
+    required this.finalFileName,
+  });
+}
+
+final _log = Logger('artifacts_provider');
+
+class ArtifactProvider {
+  ArtifactProvider({
+    required this.environment,
+    required this.userOptions,
+  });
+
+  final BuildEnvironment environment;
+  final CargokitUserOptions userOptions;
+
+  Future<Map<Target, List<Artifact>>> getArtifacts(List<Target> targets) async {
+    final result = await _getPrecompiledArtifacts(targets);
+
+    final pendingTargets = List.of(targets);
+    pendingTargets.removeWhere((element) => result.containsKey(element));
+
+    if (pendingTargets.isEmpty) {
+      return result;
+    }
+
+    final rustup = Rustup();
+    for (final target in targets) {
+      final builder = RustBuilder(target: target, environment: environment);
+      builder.prepare(rustup);
+      _log.info('Building ${environment.crateInfo.packageName} for $target');
+      final targetDir = await builder.build();
+      // For local build accept both static and dynamic libraries.
+      final artifactNames = <String>{
+        ...getArtifactNames(
+          target: target,
+          libraryName: environment.crateInfo.packageName,
+          aritifactType: AritifactType.dylib,
+          remote: false,
+        ),
+        ...getArtifactNames(
+          target: target,
+          libraryName: environment.crateInfo.packageName,
+          aritifactType: AritifactType.staticlib,
+          remote: false,
+        )
+      };
+      final artifacts = artifactNames
+          .map((artifactName) => Artifact(
+                path: path.join(targetDir, artifactName),
+                finalFileName: artifactName,
+              ))
+          .where((element) => File(element.path).existsSync())
+          .toList();
+      result[target] = artifacts;
+    }
+    return result;
+  }
+
+  Future<Map<Target, List<Artifact>>> _getPrecompiledArtifacts(
+      List<Target> targets) async {
+    if (userOptions.usePrecompiledBinaries == false) {
+      _log.info('Precompiled binaries are disabled');
+      return {};
+    }
+    if (environment.crateOptions.precompiledBinaries == null) {
+      _log.fine('Precompiled binaries not enabled for this crate');
+      return {};
+    }
+
+    final start = Stopwatch()..start();
+    final crateHash = CrateHash.compute(environment.manifestDir,
+        tempStorage: environment.targetTempDir);
+    _log.fine(
+        'Computed crate hash $crateHash in ${start.elapsedMilliseconds}ms');
+
+    final downloadedArtifactsDir =
+        path.join(environment.targetTempDir, 'precompiled', crateHash);
+    Directory(downloadedArtifactsDir).createSync(recursive: true);
+
+    final res = <Target, List<Artifact>>{};
+
+    for (final target in targets) {
+      final requiredArtifacts = getArtifactNames(
+        target: target,
+        libraryName: environment.crateInfo.packageName,
+        remote: true,
+      );
+      final artifactsForTarget = <Artifact>[];
+
+      for (final artifact in requiredArtifacts) {
+        final fileName = PrecompileBinaries.fileName(target, artifact);
+        final downloadedPath = path.join(downloadedArtifactsDir, fileName);
+        if (!File(downloadedPath).existsSync()) {
+          final signatureFileName =
+              PrecompileBinaries.signatureFileName(target, artifact);
+          await _tryDownloadArtifacts(
+            crateHash: crateHash,
+            fileName: fileName,
+            signatureFileName: signatureFileName,
+            finalPath: downloadedPath,
+          );
+        }
+        if (File(downloadedPath).existsSync()) {
+          artifactsForTarget.add(Artifact(
+            path: downloadedPath,
+            finalFileName: artifact,
+          ));
+        } else {
+          break;
+        }
+      }
+
+      // Only provide complete set of artifacts.
+      if (artifactsForTarget.length == requiredArtifacts.length) {
+        _log.fine('Found precompiled artifacts for $target');
+        res[target] = artifactsForTarget;
+      }
+    }
+
+    return res;
+  }
+
+  static Future<Response> _get(Uri url, {Map<String, String>? headers}) async {
+    int attempt = 0;
+    const maxAttempts = 10;
+    while (true) {
+      try {
+        return await get(url, headers: headers);
+      } on SocketException catch (e) {
+        // Try to detect reset by peer error and retry.
+        if (attempt++ < maxAttempts &&
+            (e.osError?.errorCode == 54 || e.osError?.errorCode == 10054)) {
+          _log.severe(
+              'Failed to download $url: $e, attempt $attempt of $maxAttempts, will retry...');
+          await Future.delayed(Duration(seconds: 1));
+          continue;
+        } else {
+          rethrow;
+        }
+      }
+    }
+  }
+
+  Future<void> _tryDownloadArtifacts({
+    required String crateHash,
+    required String fileName,
+    required String signatureFileName,
+    required String finalPath,
+  }) async {
+    final precompiledBinaries = environment.crateOptions.precompiledBinaries!;
+    final prefix = precompiledBinaries.uriPrefix;
+    final url = Uri.parse('$prefix$crateHash/$fileName');
+    final signatureUrl = Uri.parse('$prefix$crateHash/$signatureFileName');
+    _log.fine('Downloading signature from $signatureUrl');
+    final signature = await _get(signatureUrl);
+    if (signature.statusCode == 404) {
+      _log.warning(
+          'Precompiled binaries not available for crate hash $crateHash ($fileName)');
+      return;
+    }
+    if (signature.statusCode != 200) {
+      _log.severe(
+          'Failed to download signature $signatureUrl: status ${signature.statusCode}');
+      return;
+    }
+    _log.fine('Downloading binary from $url');
+    final res = await _get(url);
+    if (res.statusCode != 200) {
+      _log.severe('Failed to download binary $url: status ${res.statusCode}');
+      return;
+    }
+    if (verify(
+        precompiledBinaries.publicKey, res.bodyBytes, signature.bodyBytes)) {
+      File(finalPath).writeAsBytesSync(res.bodyBytes);
+    } else {
+      _log.shout('Signature verification failed! Ignoring binary.');
+    }
+  }
+}
+
+enum AritifactType {
+  staticlib,
+  dylib,
+}
+
+AritifactType artifactTypeForTarget(Target target) {
+  if (target.darwinPlatform != null) {
+    return AritifactType.staticlib;
+  } else {
+    return AritifactType.dylib;
+  }
+}
+
+List<String> getArtifactNames({
+  required Target target,
+  required String libraryName,
+  required bool remote,
+  AritifactType? aritifactType,
+}) {
+  aritifactType ??= artifactTypeForTarget(target);
+  if (target.darwinArch != null) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['lib$libraryName.a'];
+    } else {
+      return ['lib$libraryName.dylib'];
+    }
+  } else if (target.rust.contains('-windows-')) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['$libraryName.lib'];
+    } else {
+      return [
+        '$libraryName.dll',
+        '$libraryName.dll.lib',
+        if (!remote) '$libraryName.pdb'
+      ];
+    }
+  } else if (target.rust.contains('-linux-')) {
+    if (aritifactType == AritifactType.staticlib) {
+      return ['lib$libraryName.a'];
+    } else {
+      return ['lib$libraryName.so'];
+    }
+  } else {
+    throw Exception("Unsupported target: ${target.rust}");
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/build_cmake.dart

@@ -0,0 +1,40 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+
+class BuildCMake {
+  final CargokitUserOptions userOptions;
+
+  BuildCMake({required this.userOptions});
+
+  Future<void> build() async {
+    final targetPlatform = Environment.targetPlatform;
+    final target = Target.forFlutterName(Environment.targetPlatform);
+    if (target == null) {
+      throw Exception("Unknown target platform: $targetPlatform");
+    }
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: false);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts([target]);
+
+    final libs = artifacts[target]!;
+
+    for (final lib in libs) {
+      if (lib.type == AritifactType.dylib) {
+        File(lib.path)
+            .copySync(path.join(Environment.outputDir, lib.finalFileName));
+      }
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/build_gradle.dart

@@ -0,0 +1,49 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+
+final log = Logger('build_gradle');
+
+class BuildGradle {
+  BuildGradle({required this.userOptions});
+
+  final CargokitUserOptions userOptions;
+
+  Future<void> build() async {
+    final targets = Environment.targetPlatforms.map((arch) {
+      final target = Target.forFlutterName(arch);
+      if (target == null) {
+        throw Exception(
+            "Unknown darwin target or platform: $arch, ${Environment.darwinPlatformName}");
+      }
+      return target;
+    }).toList();
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: true);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts(targets);
+
+    for (final target in targets) {
+      final libs = artifacts[target]!;
+      final outputDir = path.join(Environment.outputDir, target.android!);
+      Directory(outputDir).createSync(recursive: true);
+
+      for (final lib in libs) {
+        if (lib.type == AritifactType.dylib) {
+          File(lib.path).copySync(path.join(outputDir, lib.finalFileName));
+        }
+      }
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/build_pod.dart

@@ -0,0 +1,89 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'target.dart';
+import 'util.dart';
+
+class BuildPod {
+  BuildPod({required this.userOptions});
+
+  final CargokitUserOptions userOptions;
+
+  Future<void> build() async {
+    final targets = Environment.darwinArchs.map((arch) {
+      final target = Target.forDarwin(
+          platformName: Environment.darwinPlatformName, darwinAarch: arch);
+      if (target == null) {
+        throw Exception(
+            "Unknown darwin target or platform: $arch, ${Environment.darwinPlatformName}");
+      }
+      return target;
+    }).toList();
+
+    final environment = BuildEnvironment.fromEnvironment(isAndroid: false);
+    final provider =
+        ArtifactProvider(environment: environment, userOptions: userOptions);
+    final artifacts = await provider.getArtifacts(targets);
+
+    void performLipo(String targetFile, Iterable<String> sourceFiles) {
+      runCommand("lipo", [
+        '-create',
+        ...sourceFiles,
+        '-output',
+        targetFile,
+      ]);
+    }
+
+    final outputDir = Environment.outputDir;
+
+    Directory(outputDir).createSync(recursive: true);
+
+    final staticLibs = artifacts.values
+        .expand((element) => element)
+        .where((element) => element.type == AritifactType.staticlib)
+        .toList();
+    final dynamicLibs = artifacts.values
+        .expand((element) => element)
+        .where((element) => element.type == AritifactType.dylib)
+        .toList();
+
+    final libName = environment.crateInfo.packageName;
+
+    // If there is static lib, use it and link it with pod
+    if (staticLibs.isNotEmpty) {
+      final finalTargetFile = path.join(outputDir, "lib$libName.a");
+      performLipo(finalTargetFile, staticLibs.map((e) => e.path));
+    } else {
+      // Otherwise try to replace bundle dylib with our dylib
+      final bundlePaths = [
+        '$libName.framework/Versions/A/$libName',
+        '$libName.framework/$libName',
+      ];
+
+      for (final bundlePath in bundlePaths) {
+        final targetFile = path.join(outputDir, bundlePath);
+        if (File(targetFile).existsSync()) {
+          performLipo(targetFile, dynamicLibs.map((e) => e.path));
+
+          // Replace absolute id with @rpath one so that it works properly
+          // when moved to Frameworks.
+          runCommand("install_name_tool", [
+            '-id',
+            '@rpath/$bundlePath',
+            targetFile,
+          ]);
+          return;
+        }
+      }
+      throw Exception('Unable to find bundle for dynamic library');
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/build_tool.dart

@@ -0,0 +1,271 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:args/command_runner.dart';
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:github/github.dart';
+import 'package:hex/hex.dart';
+import 'package:logging/logging.dart';
+
+import 'android_environment.dart';
+import 'build_cmake.dart';
+import 'build_gradle.dart';
+import 'build_pod.dart';
+import 'logging.dart';
+import 'options.dart';
+import 'precompile_binaries.dart';
+import 'target.dart';
+import 'util.dart';
+import 'verify_binaries.dart';
+
+final log = Logger('build_tool');
+
+abstract class BuildCommand extends Command {
+  Future<void> runBuildCommand(CargokitUserOptions options);
+
+  @override
+  Future<void> run() async {
+    final options = CargokitUserOptions.load();
+
+    if (options.verboseLogging ||
+        Platform.environment['CARGOKIT_VERBOSE'] == '1') {
+      enableVerboseLogging();
+    }
+
+    await runBuildCommand(options);
+  }
+}
+
+class BuildPodCommand extends BuildCommand {
+  @override
+  final name = 'build-pod';
+
+  @override
+  final description = 'Build cocoa pod library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildPod(userOptions: options);
+    await build.build();
+  }
+}
+
+class BuildGradleCommand extends BuildCommand {
+  @override
+  final name = 'build-gradle';
+
+  @override
+  final description = 'Build android library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildGradle(userOptions: options);
+    await build.build();
+  }
+}
+
+class BuildCMakeCommand extends BuildCommand {
+  @override
+  final name = 'build-cmake';
+
+  @override
+  final description = 'Build CMake library';
+
+  @override
+  Future<void> runBuildCommand(CargokitUserOptions options) async {
+    final build = BuildCMake(userOptions: options);
+    await build.build();
+  }
+}
+
+class GenKeyCommand extends Command {
+  @override
+  final name = 'gen-key';
+
+  @override
+  final description = 'Generate key pair for signing precompiled binaries';
+
+  @override
+  void run() {
+    final kp = generateKey();
+    final private = HEX.encode(kp.privateKey.bytes);
+    final public = HEX.encode(kp.publicKey.bytes);
+    print("Private Key: $private");
+    print("Public Key: $public");
+  }
+}
+
+class PrecompileBinariesCommand extends Command {
+  PrecompileBinariesCommand() {
+    argParser
+      ..addOption(
+        'repository',
+        mandatory: true,
+        help: 'Github repository slug in format owner/name',
+      )
+      ..addOption(
+        'manifest-dir',
+        mandatory: true,
+        help: 'Directory containing Cargo.toml',
+      )
+      ..addMultiOption('target',
+          help: 'Rust target triple of artifact to build.\n'
+              'Can be specified multiple times or omitted in which case\n'
+              'all targets for current platform will be built.')
+      ..addOption(
+        'android-sdk-location',
+        help: 'Location of Android SDK (if available)',
+      )
+      ..addOption(
+        'android-ndk-version',
+        help: 'Android NDK version (if available)',
+      )
+      ..addOption(
+        'android-min-sdk-version',
+        help: 'Android minimum rquired version (if available)',
+      )
+      ..addOption(
+        'temp-dir',
+        help: 'Directory to store temporary build artifacts',
+      )
+      ..addFlag(
+        "verbose",
+        abbr: "v",
+        defaultsTo: false,
+        help: "Enable verbose logging",
+      );
+  }
+
+  @override
+  final name = 'precompile-binaries';
+
+  @override
+  final description = 'Prebuild and upload binaries\n'
+      'Private key must be passed through PRIVATE_KEY environment variable. '
+      'Use gen_key through generate priave key.\n'
+      'Github token must be passed as GITHUB_TOKEN environment variable.\n';
+
+  @override
+  Future<void> run() async {
+    final verbose = argResults!['verbose'] as bool;
+    if (verbose) {
+      enableVerboseLogging();
+    }
+
+    final privateKeyString = Platform.environment['PRIVATE_KEY'];
+    if (privateKeyString == null) {
+      throw ArgumentError('Missing PRIVATE_KEY environment variable');
+    }
+    final githubToken = Platform.environment['GITHUB_TOKEN'];
+    if (githubToken == null) {
+      throw ArgumentError('Missing GITHUB_TOKEN environment variable');
+    }
+    final privateKey = HEX.decode(privateKeyString);
+    if (privateKey.length != 64) {
+      throw ArgumentError('Private key must be 64 bytes long');
+    }
+    final manifestDir = argResults!['manifest-dir'] as String;
+    if (!Directory(manifestDir).existsSync()) {
+      throw ArgumentError('Manifest directory does not exist: $manifestDir');
+    }
+    String? androidMinSdkVersionString =
+        argResults!['android-min-sdk-version'] as String?;
+    int? androidMinSdkVersion;
+    if (androidMinSdkVersionString != null) {
+      androidMinSdkVersion = int.tryParse(androidMinSdkVersionString);
+      if (androidMinSdkVersion == null) {
+        throw ArgumentError(
+            'Invalid android-min-sdk-version: $androidMinSdkVersionString');
+      }
+    }
+    final targetStrigns = argResults!['target'] as List<String>;
+    final targets = targetStrigns.map((target) {
+      final res = Target.forRustTriple(target);
+      if (res == null) {
+        throw ArgumentError('Invalid target: $target');
+      }
+      return res;
+    }).toList(growable: false);
+    final precompileBinaries = PrecompileBinaries(
+      privateKey: PrivateKey(privateKey),
+      githubToken: githubToken,
+      manifestDir: manifestDir,
+      repositorySlug: RepositorySlug.full(argResults!['repository'] as String),
+      targets: targets,
+      androidSdkLocation: argResults!['android-sdk-location'] as String?,
+      androidNdkVersion: argResults!['android-ndk-version'] as String?,
+      androidMinSdkVersion: androidMinSdkVersion,
+      tempDir: argResults!['temp-dir'] as String?,
+    );
+
+    await precompileBinaries.run();
+  }
+}
+
+class VerifyBinariesCommand extends Command {
+  VerifyBinariesCommand() {
+    argParser.addOption(
+      'manifest-dir',
+      mandatory: true,
+      help: 'Directory containing Cargo.toml',
+    );
+  }
+
+  @override
+  final name = "verify-binaries";
+
+  @override
+  final description = 'Verifies published binaries\n'
+      'Checks whether there is a binary published for each targets\n'
+      'and checks the signature.';
+
+  @override
+  Future<void> run() async {
+    final manifestDir = argResults!['manifest-dir'] as String;
+    final verifyBinaries = VerifyBinaries(
+      manifestDir: manifestDir,
+    );
+    await verifyBinaries.run();
+  }
+}
+
+Future<void> runMain(List<String> args) async {
+  try {
+    // Init logging before options are loaded
+    initLogging();
+
+    if (Platform.environment['_CARGOKIT_NDK_LINK_TARGET'] != null) {
+      return AndroidEnvironment.clangLinkerWrapper(args);
+    }
+
+    final runner = CommandRunner('build_tool', 'Cargokit built_tool')
+      ..addCommand(BuildPodCommand())
+      ..addCommand(BuildGradleCommand())
+      ..addCommand(BuildCMakeCommand())
+      ..addCommand(GenKeyCommand())
+      ..addCommand(PrecompileBinariesCommand())
+      ..addCommand(VerifyBinariesCommand());
+
+    await runner.run(args);
+  } on ArgumentError catch (e) {
+    stderr.writeln(e.toString());
+    exit(1);
+  } catch (e, s) {
+    log.severe(kDoubleSeparator);
+    log.severe('Cargokit BuildTool failed with error:');
+    log.severe(kSeparator);
+    log.severe(e);
+    // This tells user to install Rust, there's no need to pollute the log with
+    // stack trace.
+    if (e is! RustupNotFoundException) {
+      log.severe(kSeparator);
+      log.severe(s);
+      log.severe(kSeparator);
+      log.severe('BuildTool arguments: $args');
+    }
+    log.severe(kDoubleSeparator);
+    exit(1);
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/builder.dart

@@ -0,0 +1,198 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'package:collection/collection.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'android_environment.dart';
+import 'cargo.dart';
+import 'environment.dart';
+import 'options.dart';
+import 'rustup.dart';
+import 'target.dart';
+import 'util.dart';
+
+final _log = Logger('builder');
+
+enum BuildConfiguration {
+  debug,
+  release,
+  profile,
+}
+
+extension on BuildConfiguration {
+  bool get isDebug => this == BuildConfiguration.debug;
+  String get rustName => switch (this) {
+        BuildConfiguration.debug => 'debug',
+        BuildConfiguration.release => 'release',
+        BuildConfiguration.profile => 'release',
+      };
+}
+
+class BuildException implements Exception {
+  final String message;
+
+  BuildException(this.message);
+
+  @override
+  String toString() {
+    return 'BuildException: $message';
+  }
+}
+
+class BuildEnvironment {
+  final BuildConfiguration configuration;
+  final CargokitCrateOptions crateOptions;
+  final String targetTempDir;
+  final String manifestDir;
+  final CrateInfo crateInfo;
+
+  final bool isAndroid;
+  final String? androidSdkPath;
+  final String? androidNdkVersion;
+  final int? androidMinSdkVersion;
+  final String? javaHome;
+
+  BuildEnvironment({
+    required this.configuration,
+    required this.crateOptions,
+    required this.targetTempDir,
+    required this.manifestDir,
+    required this.crateInfo,
+    required this.isAndroid,
+    this.androidSdkPath,
+    this.androidNdkVersion,
+    this.androidMinSdkVersion,
+    this.javaHome,
+  });
+
+  static BuildConfiguration parseBuildConfiguration(String value) {
+    // XCode configuration adds the flavor to configuration name.
+    final firstSegment = value.split('-').first;
+    final buildConfiguration = BuildConfiguration.values.firstWhereOrNull(
+      (e) => e.name == firstSegment,
+    );
+    if (buildConfiguration == null) {
+      _log.warning('Unknown build configuraiton $value, will assume release');
+      return BuildConfiguration.release;
+    }
+    return buildConfiguration;
+  }
+
+  static BuildEnvironment fromEnvironment({
+    required bool isAndroid,
+  }) {
+    final buildConfiguration =
+        parseBuildConfiguration(Environment.configuration);
+    final manifestDir = Environment.manifestDir;
+    final crateOptions = CargokitCrateOptions.load(
+      manifestDir: manifestDir,
+    );
+    final crateInfo = CrateInfo.load(manifestDir);
+    return BuildEnvironment(
+      configuration: buildConfiguration,
+      crateOptions: crateOptions,
+      targetTempDir: Environment.targetTempDir,
+      manifestDir: manifestDir,
+      crateInfo: crateInfo,
+      isAndroid: isAndroid,
+      androidSdkPath: isAndroid ? Environment.sdkPath : null,
+      androidNdkVersion: isAndroid ? Environment.ndkVersion : null,
+      androidMinSdkVersion:
+          isAndroid ? int.parse(Environment.minSdkVersion) : null,
+      javaHome: isAndroid ? Environment.javaHome : null,
+    );
+  }
+}
+
+class RustBuilder {
+  final Target target;
+  final BuildEnvironment environment;
+
+  RustBuilder({
+    required this.target,
+    required this.environment,
+  });
+
+  void prepare(
+    Rustup rustup,
+  ) {
+    final toolchain = _toolchain;
+    if (rustup.installedTargets(toolchain) == null) {
+      rustup.installToolchain(toolchain);
+    }
+    if (toolchain == 'nightly') {
+      rustup.installRustSrcForNightly();
+    }
+    if (!rustup.installedTargets(toolchain)!.contains(target.rust)) {
+      rustup.installTarget(target.rust, toolchain: toolchain);
+    }
+  }
+
+  CargoBuildOptions? get _buildOptions =>
+      environment.crateOptions.cargo[environment.configuration];
+
+  String get _toolchain => _buildOptions?.toolchain.name ?? 'stable';
+
+  /// Returns the path of directory containing build artifacts.
+  Future<String> build() async {
+    final extraArgs = _buildOptions?.flags ?? [];
+    final manifestPath = path.join(environment.manifestDir, 'Cargo.toml');
+    runCommand(
+      'rustup',
+      [
+        'run',
+        _toolchain,
+        'cargo',
+        'build',
+        ...extraArgs,
+        '--manifest-path',
+        manifestPath,
+        '-p',
+        environment.crateInfo.packageName,
+        if (!environment.configuration.isDebug) '--release',
+        '--target',
+        target.rust,
+        '--target-dir',
+        environment.targetTempDir,
+      ],
+      environment: await _buildEnvironment(),
+    );
+    return path.join(
+      environment.targetTempDir,
+      target.rust,
+      environment.configuration.rustName,
+    );
+  }
+
+  Future<Map<String, String>> _buildEnvironment() async {
+    if (target.android == null) {
+      return {};
+    } else {
+      final sdkPath = environment.androidSdkPath;
+      final ndkVersion = environment.androidNdkVersion;
+      final minSdkVersion = environment.androidMinSdkVersion;
+      if (sdkPath == null) {
+        throw BuildException('androidSdkPath is not set');
+      }
+      if (ndkVersion == null) {
+        throw BuildException('androidNdkVersion is not set');
+      }
+      if (minSdkVersion == null) {
+        throw BuildException('androidMinSdkVersion is not set');
+      }
+      final env = AndroidEnvironment(
+        sdkPath: sdkPath,
+        ndkVersion: ndkVersion,
+        minSdkVersion: minSdkVersion,
+        targetTempDir: environment.targetTempDir,
+        target: target,
+      );
+      if (!env.ndkIsInstalled() && environment.javaHome != null) {
+        env.installNdk(javaHome: environment.javaHome!);
+      }
+      return env.buildEnvironment();
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/cargo.dart

@@ -0,0 +1,48 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+import 'package:toml/toml.dart';
+
+class ManifestException {
+  ManifestException(this.message, {required this.fileName});
+
+  final String? fileName;
+  final String message;
+
+  @override
+  String toString() {
+    if (fileName != null) {
+      return 'Failed to parse package manifest at $fileName: $message';
+    } else {
+      return 'Failed to parse package manifest: $message';
+    }
+  }
+}
+
+class CrateInfo {
+  CrateInfo({required this.packageName});
+
+  final String packageName;
+
+  static CrateInfo parseManifest(String manifest, {final String? fileName}) {
+    final toml = TomlDocument.parse(manifest);
+    final package = toml.toMap()['package'];
+    if (package == null) {
+      throw ManifestException('Missing package section', fileName: fileName);
+    }
+    final name = package['name'];
+    if (name == null) {
+      throw ManifestException('Missing package name', fileName: fileName);
+    }
+    return CrateInfo(packageName: name);
+  }
+
+  static CrateInfo load(String manifestDir) {
+    final manifestFile = File(path.join(manifestDir, 'Cargo.toml'));
+    final manifest = manifestFile.readAsStringSync();
+    return parseManifest(manifest, fileName: manifestFile.path);
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/crate_hash.dart

@@ -0,0 +1,124 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:convert';
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:collection/collection.dart';
+import 'package:convert/convert.dart';
+import 'package:crypto/crypto.dart';
+import 'package:path/path.dart' as path;
+
+class CrateHash {
+  /// Computes a hash uniquely identifying crate content. This takes into account
+  /// content all all .rs files inside the src directory, as well as Cargo.toml,
+  /// Cargo.lock, build.rs and cargokit.yaml.
+  ///
+  /// If [tempStorage] is provided, computed hash is stored in a file in that directory
+  /// and reused on subsequent calls if the crate content hasn't changed.
+  static String compute(String manifestDir, {String? tempStorage}) {
+    return CrateHash._(
+      manifestDir: manifestDir,
+      tempStorage: tempStorage,
+    )._compute();
+  }
+
+  CrateHash._({
+    required this.manifestDir,
+    required this.tempStorage,
+  });
+
+  String _compute() {
+    final files = getFiles();
+    final tempStorage = this.tempStorage;
+    if (tempStorage != null) {
+      final quickHash = _computeQuickHash(files);
+      final quickHashFolder = Directory(path.join(tempStorage, 'crate_hash'));
+      quickHashFolder.createSync(recursive: true);
+      final quickHashFile = File(path.join(quickHashFolder.path, quickHash));
+      if (quickHashFile.existsSync()) {
+        return quickHashFile.readAsStringSync();
+      }
+      final hash = _computeHash(files);
+      quickHashFile.writeAsStringSync(hash);
+      return hash;
+    } else {
+      return _computeHash(files);
+    }
+  }
+
+  /// Computes a quick hash based on files stat (without reading contents). This
+  /// is used to cache the real hash, which is slower to compute since it involves
+  /// reading every single file.
+  String _computeQuickHash(List<File> files) {
+    final output = AccumulatorSink<Digest>();
+    final input = sha256.startChunkedConversion(output);
+
+    final data = ByteData(8);
+    for (final file in files) {
+      input.add(utf8.encode(file.path));
+      final stat = file.statSync();
+      data.setUint64(0, stat.size);
+      input.add(data.buffer.asUint8List());
+      data.setUint64(0, stat.modified.millisecondsSinceEpoch);
+      input.add(data.buffer.asUint8List());
+    }
+
+    input.close();
+    return base64Url.encode(output.events.single.bytes);
+  }
+
+  String _computeHash(List<File> files) {
+    final output = AccumulatorSink<Digest>();
+    final input = sha256.startChunkedConversion(output);
+
+    void addTextFile(File file) {
+      // text Files are hashed by lines in case we're dealing with github checkout
+      // that auto-converts line endings.
+      final splitter = LineSplitter();
+      if (file.existsSync()) {
+        final data = file.readAsStringSync();
+        final lines = splitter.convert(data);
+        for (final line in lines) {
+          input.add(utf8.encode(line));
+        }
+      }
+    }
+
+    for (final file in files) {
+      addTextFile(file);
+    }
+
+    input.close();
+    final res = output.events.single;
+
+    // Truncate to 128bits.
+    final hash = res.bytes.sublist(0, 16);
+    return hex.encode(hash);
+  }
+
+  List<File> getFiles() {
+    final src = Directory(path.join(manifestDir, 'src'));
+    final files = src
+        .listSync(recursive: true, followLinks: false)
+        .whereType<File>()
+        .toList();
+    files.sortBy((element) => element.path);
+    void addFile(String relative) {
+      final file = File(path.join(manifestDir, relative));
+      if (file.existsSync()) {
+        files.add(file);
+      }
+    }
+
+    addFile('Cargo.toml');
+    addFile('Cargo.lock');
+    addFile('build.rs');
+    addFile('cargokit.yaml');
+    return files;
+  }
+
+  final String manifestDir;
+  final String? tempStorage;
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/environment.dart

@@ -0,0 +1,68 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+extension on String {
+  String resolveSymlink() => File(this).resolveSymbolicLinksSync();
+}
+
+class Environment {
+  /// Current build configuration (debug or release).
+  static String get configuration =>
+      _getEnv("CARGOKIT_CONFIGURATION").toLowerCase();
+
+  static bool get isDebug => configuration == 'debug';
+  static bool get isRelease => configuration == 'release';
+
+  /// Temporary directory where Rust build artifacts are placed.
+  static String get targetTempDir => _getEnv("CARGOKIT_TARGET_TEMP_DIR");
+
+  /// Final output directory where the build artifacts are placed.
+  static String get outputDir => _getEnvPath('CARGOKIT_OUTPUT_DIR');
+
+  /// Path to the crate manifest (containing Cargo.toml).
+  static String get manifestDir => _getEnvPath('CARGOKIT_MANIFEST_DIR');
+
+  /// Directory inside root project. Not necessarily root folder. Symlinks are
+  /// not resolved on purpose.
+  static String get rootProjectDir => _getEnv('CARGOKIT_ROOT_PROJECT_DIR');
+
+  // Pod
+
+  /// Platform name (macosx, iphoneos, iphonesimulator).
+  static String get darwinPlatformName =>
+      _getEnv("CARGOKIT_DARWIN_PLATFORM_NAME");
+
+  /// List of architectures to build for (arm64, armv7, x86_64).
+  static List<String> get darwinArchs =>
+      _getEnv("CARGOKIT_DARWIN_ARCHS").split(' ');
+
+  // Gradle
+  static String get minSdkVersion => _getEnv("CARGOKIT_MIN_SDK_VERSION");
+  static String get ndkVersion => _getEnv("CARGOKIT_NDK_VERSION");
+  static String get sdkPath => _getEnvPath("CARGOKIT_SDK_DIR");
+  static String get javaHome => _getEnvPath("CARGOKIT_JAVA_HOME");
+  static List<String> get targetPlatforms =>
+      _getEnv("CARGOKIT_TARGET_PLATFORMS").split(',');
+
+  // CMAKE
+  static String get targetPlatform => _getEnv("CARGOKIT_TARGET_PLATFORM");
+
+  static String _getEnv(String key) {
+    final res = Platform.environment[key];
+    if (res == null) {
+      throw Exception("Missing environment variable $key");
+    }
+    return res;
+  }
+
+  static String _getEnvPath(String key) {
+    final res = _getEnv(key);
+    if (Directory(res).existsSync()) {
+      return res.resolveSymlink();
+    } else {
+      return res;
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/logging.dart

@@ -0,0 +1,52 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:logging/logging.dart';
+
+const String kSeparator = "--";
+const String kDoubleSeparator = "==";
+
+bool _lastMessageWasSeparator = false;
+
+void _log(LogRecord rec) {
+  final prefix = '${rec.level.name}: ';
+  final out = rec.level == Level.SEVERE ? stderr : stdout;
+  if (rec.message == kSeparator) {
+    if (!_lastMessageWasSeparator) {
+      out.write(prefix);
+      out.writeln('-' * 80);
+      _lastMessageWasSeparator = true;
+    }
+    return;
+  } else if (rec.message == kDoubleSeparator) {
+    out.write(prefix);
+    out.writeln('=' * 80);
+    _lastMessageWasSeparator = true;
+    return;
+  }
+  out.write(prefix);
+  out.writeln(rec.message);
+  _lastMessageWasSeparator = false;
+}
+
+void initLogging() {
+  Logger.root.level = Level.INFO;
+  Logger.root.onRecord.listen((LogRecord rec) {
+    final lines = rec.message.split('\n');
+    for (final line in lines) {
+      if (line.isNotEmpty || lines.length == 1 || line != lines.last) {
+        _log(LogRecord(
+          rec.level,
+          line,
+          rec.loggerName,
+        ));
+      }
+    }
+  });
+}
+
+void enableVerboseLogging() {
+  Logger.root.level = Level.ALL;
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/options.dart

@@ -0,0 +1,309 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:hex/hex.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+import 'package:source_span/source_span.dart';
+import 'package:yaml/yaml.dart';
+
+import 'builder.dart';
+import 'environment.dart';
+import 'rustup.dart';
+
+final _log = Logger('options');
+
+/// A class for exceptions that have source span information attached.
+class SourceSpanException implements Exception {
+  // This is a getter so that subclasses can override it.
+  /// A message describing the exception.
+  String get message => _message;
+  final String _message;
+
+  // This is a getter so that subclasses can override it.
+  /// The span associated with this exception.
+  ///
+  /// This may be `null` if the source location can't be determined.
+  SourceSpan? get span => _span;
+  final SourceSpan? _span;
+
+  SourceSpanException(this._message, this._span);
+
+  /// Returns a string representation of `this`.
+  ///
+  /// [color] may either be a [String], a [bool], or `null`. If it's a string,
+  /// it indicates an ANSI terminal color escape that should be used to
+  /// highlight the span's text. If it's `true`, it indicates that the text
+  /// should be highlighted using the default color. If it's `false` or `null`,
+  /// it indicates that the text shouldn't be highlighted.
+  @override
+  String toString({Object? color}) {
+    if (span == null) return message;
+    return 'Error on ${span!.message(message, color: color)}';
+  }
+}
+
+enum Toolchain {
+  stable,
+  beta,
+  nightly,
+}
+
+class CargoBuildOptions {
+  final Toolchain toolchain;
+  final List<String> flags;
+
+  CargoBuildOptions({
+    required this.toolchain,
+    required this.flags,
+  });
+
+  static Toolchain _toolchainFromNode(YamlNode node) {
+    if (node case YamlScalar(value: String name)) {
+      final toolchain =
+          Toolchain.values.firstWhereOrNull((element) => element.name == name);
+      if (toolchain != null) {
+        return toolchain;
+      }
+    }
+    throw SourceSpanException(
+        'Unknown toolchain. Must be one of ${Toolchain.values.map((e) => e.name)}.',
+        node.span);
+  }
+
+  static CargoBuildOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargo options must be a map', node.span);
+    }
+    Toolchain toolchain = Toolchain.stable;
+    List<String> flags = [];
+    for (final MapEntry(:key, :value) in node.nodes.entries) {
+      if (key case YamlScalar(value: 'toolchain')) {
+        toolchain = _toolchainFromNode(value);
+      } else if (key case YamlScalar(value: 'extra_flags')) {
+        if (value case YamlList(nodes: List<YamlNode> list)) {
+          if (list.every((element) {
+            if (element case YamlScalar(value: String _)) {
+              return true;
+            }
+            return false;
+          })) {
+            flags = list.map((e) => e.value as String).toList();
+            continue;
+          }
+        }
+        throw SourceSpanException(
+            'Extra flags must be a list of strings', value.span);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargo option type. Must be "toolchain" or "extra_flags".',
+            key.span);
+      }
+    }
+    return CargoBuildOptions(toolchain: toolchain, flags: flags);
+  }
+}
+
+extension on YamlMap {
+  /// Map that extracts keys so that we can do map case check on them.
+  Map<dynamic, YamlNode> get valueMap =>
+      nodes.map((key, value) => MapEntry(key.value, value));
+}
+
+class PrecompiledBinaries {
+  final String uriPrefix;
+  final PublicKey publicKey;
+
+  PrecompiledBinaries({
+    required this.uriPrefix,
+    required this.publicKey,
+  });
+
+  static PublicKey _publicKeyFromHex(String key, SourceSpan? span) {
+    final bytes = HEX.decode(key);
+    if (bytes.length != 32) {
+      throw SourceSpanException(
+          'Invalid public key. Must be 32 bytes long.', span);
+    }
+    return PublicKey(bytes);
+  }
+
+  static PrecompiledBinaries parse(YamlNode node) {
+    if (node case YamlMap(valueMap: Map<dynamic, YamlNode> map)) {
+      if (map
+          case {
+            'url_prefix': YamlNode urlPrefixNode,
+            'public_key': YamlNode publicKeyNode,
+          }) {
+        final urlPrefix = switch (urlPrefixNode) {
+          YamlScalar(value: String urlPrefix) => urlPrefix,
+          _ => throw SourceSpanException(
+              'Invalid URL prefix value.', urlPrefixNode.span),
+        };
+        final publicKey = switch (publicKeyNode) {
+          YamlScalar(value: String publicKey) =>
+            _publicKeyFromHex(publicKey, publicKeyNode.span),
+          _ => throw SourceSpanException(
+              'Invalid public key value.', publicKeyNode.span),
+        };
+        return PrecompiledBinaries(
+          uriPrefix: urlPrefix,
+          publicKey: publicKey,
+        );
+      }
+    }
+    throw SourceSpanException(
+        'Invalid precompiled binaries value. '
+        'Expected Map with "url_prefix" and "public_key".',
+        node.span);
+  }
+}
+
+/// Cargokit options specified for Rust crate.
+class CargokitCrateOptions {
+  CargokitCrateOptions({
+    this.cargo = const {},
+    this.precompiledBinaries,
+  });
+
+  final Map<BuildConfiguration, CargoBuildOptions> cargo;
+  final PrecompiledBinaries? precompiledBinaries;
+
+  static CargokitCrateOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargokit options must be a map', node.span);
+    }
+    final options = <BuildConfiguration, CargoBuildOptions>{};
+    PrecompiledBinaries? precompiledBinaries;
+
+    for (final entry in node.nodes.entries) {
+      if (entry
+          case MapEntry(
+            key: YamlScalar(value: 'cargo'),
+            value: YamlNode node,
+          )) {
+        if (node is! YamlMap) {
+          throw SourceSpanException('Cargo options must be a map', node.span);
+        }
+        for (final MapEntry(:YamlNode key, :value) in node.nodes.entries) {
+          if (key case YamlScalar(value: String name)) {
+            final configuration = BuildConfiguration.values
+                .firstWhereOrNull((element) => element.name == name);
+            if (configuration != null) {
+              options[configuration] = CargoBuildOptions.parse(value);
+              continue;
+            }
+          }
+          throw SourceSpanException(
+              'Unknown build configuration. Must be one of ${BuildConfiguration.values.map((e) => e.name)}.',
+              key.span);
+        }
+      } else if (entry.key case YamlScalar(value: 'precompiled_binaries')) {
+        precompiledBinaries = PrecompiledBinaries.parse(entry.value);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargokit option type. Must be "cargo" or "precompiled_binaries".',
+            entry.key.span);
+      }
+    }
+    return CargokitCrateOptions(
+      cargo: options,
+      precompiledBinaries: precompiledBinaries,
+    );
+  }
+
+  static CargokitCrateOptions load({
+    required String manifestDir,
+  }) {
+    final uri = Uri.file(path.join(manifestDir, "cargokit.yaml"));
+    final file = File.fromUri(uri);
+    if (file.existsSync()) {
+      final contents = loadYamlNode(file.readAsStringSync(), sourceUrl: uri);
+      return parse(contents);
+    } else {
+      return CargokitCrateOptions();
+    }
+  }
+}
+
+class CargokitUserOptions {
+  // When Rustup is installed always build locally unless user opts into
+  // using precompiled binaries.
+  static bool defaultUsePrecompiledBinaries() {
+    return Rustup.executablePath() == null;
+  }
+
+  CargokitUserOptions({
+    required this.usePrecompiledBinaries,
+    required this.verboseLogging,
+  });
+
+  CargokitUserOptions._()
+      : usePrecompiledBinaries = defaultUsePrecompiledBinaries(),
+        verboseLogging = false;
+
+  static CargokitUserOptions parse(YamlNode node) {
+    if (node is! YamlMap) {
+      throw SourceSpanException('Cargokit options must be a map', node.span);
+    }
+    bool usePrecompiledBinaries = defaultUsePrecompiledBinaries();
+    bool verboseLogging = false;
+
+    for (final entry in node.nodes.entries) {
+      if (entry.key case YamlScalar(value: 'use_precompiled_binaries')) {
+        if (entry.value case YamlScalar(value: bool value)) {
+          usePrecompiledBinaries = value;
+          continue;
+        }
+        throw SourceSpanException(
+            'Invalid value for "use_precompiled_binaries". Must be a boolean.',
+            entry.value.span);
+      } else if (entry.key case YamlScalar(value: 'verbose_logging')) {
+        if (entry.value case YamlScalar(value: bool value)) {
+          verboseLogging = value;
+          continue;
+        }
+        throw SourceSpanException(
+            'Invalid value for "verbose_logging". Must be a boolean.',
+            entry.value.span);
+      } else {
+        throw SourceSpanException(
+            'Unknown cargokit option type. Must be "use_precompiled_binaries" or "verbose_logging".',
+            entry.key.span);
+      }
+    }
+    return CargokitUserOptions(
+      usePrecompiledBinaries: usePrecompiledBinaries,
+      verboseLogging: verboseLogging,
+    );
+  }
+
+  static CargokitUserOptions load() {
+    String fileName = "cargokit_options.yaml";
+    var userProjectDir = Directory(Environment.rootProjectDir);
+
+    while (userProjectDir.parent.path != userProjectDir.path) {
+      final configFile = File(path.join(userProjectDir.path, fileName));
+      if (configFile.existsSync()) {
+        final contents = loadYamlNode(
+          configFile.readAsStringSync(),
+          sourceUrl: configFile.uri,
+        );
+        final res = parse(contents);
+        if (res.verboseLogging) {
+          _log.info('Found user options file at ${configFile.path}');
+        }
+        return res;
+      }
+      userProjectDir = userProjectDir.parent;
+    }
+    return CargokitUserOptions._();
+  }
+
+  final bool usePrecompiledBinaries;
+  final bool verboseLogging;
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/precompile_binaries.dart

@@ -0,0 +1,202 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:github/github.dart';
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'artifacts_provider.dart';
+import 'builder.dart';
+import 'cargo.dart';
+import 'crate_hash.dart';
+import 'options.dart';
+import 'rustup.dart';
+import 'target.dart';
+
+final _log = Logger('precompile_binaries');
+
+class PrecompileBinaries {
+  PrecompileBinaries({
+    required this.privateKey,
+    required this.githubToken,
+    required this.repositorySlug,
+    required this.manifestDir,
+    required this.targets,
+    this.androidSdkLocation,
+    this.androidNdkVersion,
+    this.androidMinSdkVersion,
+    this.tempDir,
+  });
+
+  final PrivateKey privateKey;
+  final String githubToken;
+  final RepositorySlug repositorySlug;
+  final String manifestDir;
+  final List<Target> targets;
+  final String? androidSdkLocation;
+  final String? androidNdkVersion;
+  final int? androidMinSdkVersion;
+  final String? tempDir;
+
+  static String fileName(Target target, String name) {
+    return '${target.rust}_$name';
+  }
+
+  static String signatureFileName(Target target, String name) {
+    return '${target.rust}_$name.sig';
+  }
+
+  Future<void> run() async {
+    final crateInfo = CrateInfo.load(manifestDir);
+
+    final targets = List.of(this.targets);
+    if (targets.isEmpty) {
+      targets.addAll([
+        ...Target.buildableTargets(),
+        if (androidSdkLocation != null) ...Target.androidTargets(),
+      ]);
+    }
+
+    _log.info('Precompiling binaries for $targets');
+
+    final hash = CrateHash.compute(manifestDir);
+    _log.info('Computed crate hash: $hash');
+
+    final String tagName = 'precompiled_$hash';
+
+    final github = GitHub(auth: Authentication.withToken(githubToken));
+    final repo = github.repositories;
+    final release = await _getOrCreateRelease(
+      repo: repo,
+      tagName: tagName,
+      packageName: crateInfo.packageName,
+      hash: hash,
+    );
+
+    final tempDir = this.tempDir != null
+        ? Directory(this.tempDir!)
+        : Directory.systemTemp.createTempSync('precompiled_');
+
+    tempDir.createSync(recursive: true);
+
+    final crateOptions = CargokitCrateOptions.load(
+      manifestDir: manifestDir,
+    );
+
+    final buildEnvironment = BuildEnvironment(
+      configuration: BuildConfiguration.release,
+      crateOptions: crateOptions,
+      targetTempDir: tempDir.path,
+      manifestDir: manifestDir,
+      crateInfo: crateInfo,
+      isAndroid: androidSdkLocation != null,
+      androidSdkPath: androidSdkLocation,
+      androidNdkVersion: androidNdkVersion,
+      androidMinSdkVersion: androidMinSdkVersion,
+    );
+
+    final rustup = Rustup();
+
+    for (final target in targets) {
+      final artifactNames = getArtifactNames(
+        target: target,
+        libraryName: crateInfo.packageName,
+        remote: true,
+      );
+
+      if (artifactNames.every((name) {
+        final fileName = PrecompileBinaries.fileName(target, name);
+        return (release.assets ?? []).any((e) => e.name == fileName);
+      })) {
+        _log.info("All artifacts for $target already exist - skipping");
+        continue;
+      }
+
+      _log.info('Building for $target');
+
+      final builder =
+          RustBuilder(target: target, environment: buildEnvironment);
+      builder.prepare(rustup);
+      final res = await builder.build();
+
+      final assets = <CreateReleaseAsset>[];
+      for (final name in artifactNames) {
+        final file = File(path.join(res, name));
+        if (!file.existsSync()) {
+          throw Exception('Missing artifact: ${file.path}');
+        }
+
+        final data = file.readAsBytesSync();
+        final create = CreateReleaseAsset(
+          name: PrecompileBinaries.fileName(target, name),
+          contentType: "application/octet-stream",
+          assetData: data,
+        );
+        final signature = sign(privateKey, data);
+        final signatureCreate = CreateReleaseAsset(
+          name: signatureFileName(target, name),
+          contentType: "application/octet-stream",
+          assetData: signature,
+        );
+        bool verified = verify(public(privateKey), data, signature);
+        if (!verified) {
+          throw Exception('Signature verification failed');
+        }
+        assets.add(create);
+        assets.add(signatureCreate);
+      }
+      _log.info('Uploading assets: ${assets.map((e) => e.name)}');
+      for (final asset in assets) {
+        // This seems to be failing on CI so do it one by one
+        int retryCount = 0;
+        while (true) {
+          try {
+            await repo.uploadReleaseAssets(release, [asset]);
+            break;
+          } on Exception catch (e) {
+            if (retryCount == 10) {
+              rethrow;
+            }
+            ++retryCount;
+            _log.shout(
+                'Upload failed (attempt $retryCount, will retry): ${e.toString()}');
+            await Future.delayed(Duration(seconds: 2));
+          }
+        }
+      }
+    }
+
+    _log.info('Cleaning up');
+    tempDir.deleteSync(recursive: true);
+  }
+
+  Future<Release> _getOrCreateRelease({
+    required RepositoriesService repo,
+    required String tagName,
+    required String packageName,
+    required String hash,
+  }) async {
+    Release release;
+    try {
+      _log.info('Fetching release $tagName');
+      release = await repo.getReleaseByTagName(repositorySlug, tagName);
+    } on ReleaseNotFound {
+      _log.info('Release not found - creating release $tagName');
+      release = await repo.createRelease(
+          repositorySlug,
+          CreateRelease.from(
+            tagName: tagName,
+            name: 'Precompiled binaries ${hash.substring(0, 8)}',
+            targetCommitish: null,
+            isDraft: false,
+            isPrerelease: false,
+            body: 'Precompiled binaries for crate $packageName, '
+                'crate hash $hash.',
+          ));
+    }
+    return release;
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/rustup.dart

@@ -0,0 +1,136 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+import 'package:path/path.dart' as path;
+
+import 'util.dart';
+
+class _Toolchain {
+  _Toolchain(
+    this.name,
+    this.targets,
+  );
+
+  final String name;
+  final List<String> targets;
+}
+
+class Rustup {
+  List<String>? installedTargets(String toolchain) {
+    final targets = _installedTargets(toolchain);
+    return targets != null ? List.unmodifiable(targets) : null;
+  }
+
+  void installToolchain(String toolchain) {
+    log.info("Installing Rust toolchain: $toolchain");
+    runCommand("rustup", ['toolchain', 'install', toolchain]);
+    _installedToolchains
+        .add(_Toolchain(toolchain, _getInstalledTargets(toolchain)));
+  }
+
+  void installTarget(
+    String target, {
+    required String toolchain,
+  }) {
+    log.info("Installing Rust target: $target");
+    runCommand("rustup", [
+      'target',
+      'add',
+      '--toolchain',
+      toolchain,
+      target,
+    ]);
+    _installedTargets(toolchain)?.add(target);
+  }
+
+  final List<_Toolchain> _installedToolchains;
+
+  Rustup() : _installedToolchains = _getInstalledToolchains();
+
+  List<String>? _installedTargets(String toolchain) => _installedToolchains
+      .firstWhereOrNull(
+          (e) => e.name == toolchain || e.name.startsWith('$toolchain-'))
+      ?.targets;
+
+  static List<_Toolchain> _getInstalledToolchains() {
+    String extractToolchainName(String line) {
+      // ignore (default) after toolchain name
+      final parts = line.split(' ');
+      return parts[0];
+    }
+
+    final res = runCommand("rustup", ['toolchain', 'list']);
+
+    // To list all non-custom toolchains, we need to filter out lines that
+    // don't start with "stable", "beta", or "nightly".
+    Pattern nonCustom = RegExp(r"^(stable|beta|nightly)");
+    final lines = res.stdout
+        .toString()
+        .split('\n')
+        .where((e) => e.isNotEmpty && e.startsWith(nonCustom))
+        .map(extractToolchainName)
+        .toList(growable: true);
+
+    return lines
+        .map(
+          (name) => _Toolchain(
+            name,
+            _getInstalledTargets(name),
+          ),
+        )
+        .toList(growable: true);
+  }
+
+  static List<String> _getInstalledTargets(String toolchain) {
+    final res = runCommand("rustup", [
+      'target',
+      'list',
+      '--toolchain',
+      toolchain,
+      '--installed',
+    ]);
+    final lines = res.stdout
+        .toString()
+        .split('\n')
+        .where((e) => e.isNotEmpty)
+        .toList(growable: true);
+    return lines;
+  }
+
+  bool _didInstallRustSrcForNightly = false;
+
+  void installRustSrcForNightly() {
+    if (_didInstallRustSrcForNightly) {
+      return;
+    }
+    // Useful for -Z build-std
+    runCommand(
+      "rustup",
+      ['component', 'add', 'rust-src', '--toolchain', 'nightly'],
+    );
+    _didInstallRustSrcForNightly = true;
+  }
+
+  static String? executablePath() {
+    final envPath = Platform.environment['PATH'];
+    final envPathSeparator = Platform.isWindows ? ';' : ':';
+    final home = Platform.isWindows
+        ? Platform.environment['USERPROFILE']
+        : Platform.environment['HOME'];
+    final paths = [
+      if (home != null) path.join(home, '.cargo', 'bin'),
+      if (envPath != null) ...envPath.split(envPathSeparator),
+    ];
+    for (final p in paths) {
+      final rustup = Platform.isWindows ? 'rustup.exe' : 'rustup';
+      final rustupPath = path.join(p, rustup);
+      if (File(rustupPath).existsSync()) {
+        return rustupPath;
+      }
+    }
+    return null;
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/target.dart

@@ -0,0 +1,140 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:collection/collection.dart';
+
+import 'util.dart';
+
+class Target {
+  Target({
+    required this.rust,
+    this.flutter,
+    this.android,
+    this.androidMinSdkVersion,
+    this.darwinPlatform,
+    this.darwinArch,
+  });
+
+  static final all = [
+    Target(
+      rust: 'armv7-linux-androideabi',
+      flutter: 'android-arm',
+      android: 'armeabi-v7a',
+      androidMinSdkVersion: 16,
+    ),
+    Target(
+      rust: 'aarch64-linux-android',
+      flutter: 'android-arm64',
+      android: 'arm64-v8a',
+      androidMinSdkVersion: 21,
+    ),
+    Target(
+      rust: 'i686-linux-android',
+      flutter: 'android-x86',
+      android: 'x86',
+      androidMinSdkVersion: 16,
+    ),
+    Target(
+      rust: 'x86_64-linux-android',
+      flutter: 'android-x64',
+      android: 'x86_64',
+      androidMinSdkVersion: 21,
+    ),
+    Target(
+      rust: 'x86_64-pc-windows-msvc',
+      flutter: 'windows-x64',
+    ),
+    Target(
+      rust: 'x86_64-unknown-linux-gnu',
+      flutter: 'linux-x64',
+    ),
+    Target(
+      rust: 'aarch64-unknown-linux-gnu',
+      flutter: 'linux-arm64',
+    ),
+    Target(
+      rust: 'x86_64-apple-darwin',
+      darwinPlatform: 'macosx',
+      darwinArch: 'x86_64',
+    ),
+    Target(
+      rust: 'aarch64-apple-darwin',
+      darwinPlatform: 'macosx',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'aarch64-apple-ios',
+      darwinPlatform: 'iphoneos',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'aarch64-apple-ios-sim',
+      darwinPlatform: 'iphonesimulator',
+      darwinArch: 'arm64',
+    ),
+    Target(
+      rust: 'x86_64-apple-ios',
+      darwinPlatform: 'iphonesimulator',
+      darwinArch: 'x86_64',
+    ),
+  ];
+
+  static Target? forFlutterName(String flutterName) {
+    return all.firstWhereOrNull((element) => element.flutter == flutterName);
+  }
+
+  static Target? forDarwin({
+    required String platformName,
+    required String darwinAarch,
+  }) {
+    return all.firstWhereOrNull((element) => //
+        element.darwinPlatform == platformName &&
+        element.darwinArch == darwinAarch);
+  }
+
+  static Target? forRustTriple(String triple) {
+    return all.firstWhereOrNull((element) => element.rust == triple);
+  }
+
+  static List<Target> androidTargets() {
+    return all
+        .where((element) => element.android != null)
+        .toList(growable: false);
+  }
+
+  /// Returns buildable targets on current host platform ignoring Android targets.
+  static List<Target> buildableTargets() {
+    if (Platform.isLinux) {
+      // Right now we don't support cross-compiling on Linux. So we just return
+      // the host target.
+      final arch = runCommand('arch', []).stdout as String;
+      if (arch.trim() == 'aarch64') {
+        return [Target.forRustTriple('aarch64-unknown-linux-gnu')!];
+      } else {
+        return [Target.forRustTriple('x86_64-unknown-linux-gnu')!];
+      }
+    }
+    return all.where((target) {
+      if (Platform.isWindows) {
+        return target.rust.contains('-windows-');
+      } else if (Platform.isMacOS) {
+        return target.darwinPlatform != null;
+      }
+      return false;
+    }).toList(growable: false);
+  }
+
+  @override
+  String toString() {
+    return rust;
+  }
+
+  final String? flutter;
+  final String rust;
+  final String? android;
+  final int? androidMinSdkVersion;
+  final String? darwinPlatform;
+  final String? darwinArch;
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/util.dart

@@ -0,0 +1,172 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:logging/logging.dart';
+import 'package:path/path.dart' as path;
+
+import 'logging.dart';
+import 'rustup.dart';
+
+final log = Logger("process");
+
+class CommandFailedException implements Exception {
+  final String executable;
+  final List<String> arguments;
+  final ProcessResult result;
+
+  CommandFailedException({
+    required this.executable,
+    required this.arguments,
+    required this.result,
+  });
+
+  @override
+  String toString() {
+    final stdout = result.stdout.toString().trim();
+    final stderr = result.stderr.toString().trim();
+    return [
+      "External Command: $executable ${arguments.map((e) => '"$e"').join(' ')}",
+      "Returned Exit Code: ${result.exitCode}",
+      kSeparator,
+      "STDOUT:",
+      if (stdout.isNotEmpty) stdout,
+      kSeparator,
+      "STDERR:",
+      if (stderr.isNotEmpty) stderr,
+    ].join('\n');
+  }
+}
+
+class TestRunCommandArgs {
+  final String executable;
+  final List<String> arguments;
+  final String? workingDirectory;
+  final Map<String, String>? environment;
+  final bool includeParentEnvironment;
+  final bool runInShell;
+  final Encoding? stdoutEncoding;
+  final Encoding? stderrEncoding;
+
+  TestRunCommandArgs({
+    required this.executable,
+    required this.arguments,
+    this.workingDirectory,
+    this.environment,
+    this.includeParentEnvironment = true,
+    this.runInShell = false,
+    this.stdoutEncoding,
+    this.stderrEncoding,
+  });
+}
+
+class TestRunCommandResult {
+  TestRunCommandResult({
+    this.pid = 1,
+    this.exitCode = 0,
+    this.stdout = '',
+    this.stderr = '',
+  });
+
+  final int pid;
+  final int exitCode;
+  final String stdout;
+  final String stderr;
+}
+
+TestRunCommandResult Function(TestRunCommandArgs args)? testRunCommandOverride;
+
+ProcessResult runCommand(
+  String executable,
+  List<String> arguments, {
+  String? workingDirectory,
+  Map<String, String>? environment,
+  bool includeParentEnvironment = true,
+  bool runInShell = false,
+  Encoding? stdoutEncoding = systemEncoding,
+  Encoding? stderrEncoding = systemEncoding,
+}) {
+  if (testRunCommandOverride != null) {
+    final result = testRunCommandOverride!(TestRunCommandArgs(
+      executable: executable,
+      arguments: arguments,
+      workingDirectory: workingDirectory,
+      environment: environment,
+      includeParentEnvironment: includeParentEnvironment,
+      runInShell: runInShell,
+      stdoutEncoding: stdoutEncoding,
+      stderrEncoding: stderrEncoding,
+    ));
+    return ProcessResult(
+      result.pid,
+      result.exitCode,
+      result.stdout,
+      result.stderr,
+    );
+  }
+  log.finer('Running command $executable ${arguments.join(' ')}');
+  final res = Process.runSync(
+    _resolveExecutable(executable),
+    arguments,
+    workingDirectory: workingDirectory,
+    environment: environment,
+    includeParentEnvironment: includeParentEnvironment,
+    runInShell: runInShell,
+    stderrEncoding: stderrEncoding,
+    stdoutEncoding: stdoutEncoding,
+  );
+  if (res.exitCode != 0) {
+    throw CommandFailedException(
+      executable: executable,
+      arguments: arguments,
+      result: res,
+    );
+  } else {
+    return res;
+  }
+}
+
+class RustupNotFoundException implements Exception {
+  @override
+  String toString() {
+    return [
+      ' ',
+      'rustup not found in PATH.',
+      ' ',
+      'Maybe you need to install Rust? It only takes a minute:',
+      ' ',
+      if (Platform.isWindows) 'https://www.rust-lang.org/tools/install',
+      if (hasHomebrewRustInPath()) ...[
+        '\$ brew unlink rust # Unlink homebrew Rust from PATH',
+      ],
+      if (!Platform.isWindows)
+        "\$ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh",
+      ' ',
+    ].join('\n');
+  }
+
+  static bool hasHomebrewRustInPath() {
+    if (!Platform.isMacOS) {
+      return false;
+    }
+    final envPath = Platform.environment['PATH'] ?? '';
+    final paths = envPath.split(':');
+    return paths.any((p) {
+      return p.contains('homebrew') && File(path.join(p, 'rustc')).existsSync();
+    });
+  }
+}
+
+String _resolveExecutable(String executable) {
+  if (executable == 'rustup') {
+    final resolved = Rustup.executablePath();
+    if (resolved != null) {
+      return resolved;
+    }
+    throw RustupNotFoundException();
+  } else {
+    return executable;
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/lib/src/verify_binaries.dart

@@ -0,0 +1,84 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import 'dart:io';
+
+import 'package:ed25519_edwards/ed25519_edwards.dart';
+import 'package:http/http.dart';
+
+import 'artifacts_provider.dart';
+import 'cargo.dart';
+import 'crate_hash.dart';
+import 'options.dart';
+import 'precompile_binaries.dart';
+import 'target.dart';
+
+class VerifyBinaries {
+  VerifyBinaries({
+    required this.manifestDir,
+  });
+
+  final String manifestDir;
+
+  Future<void> run() async {
+    final crateInfo = CrateInfo.load(manifestDir);
+
+    final config = CargokitCrateOptions.load(manifestDir: manifestDir);
+    final precompiledBinaries = config.precompiledBinaries;
+    if (precompiledBinaries == null) {
+      stdout.writeln('Crate does not support precompiled binaries.');
+    } else {
+      final crateHash = CrateHash.compute(manifestDir);
+      stdout.writeln('Crate hash: $crateHash');
+
+      for (final target in Target.all) {
+        final message = 'Checking ${target.rust}...';
+        stdout.write(message.padRight(40));
+        stdout.flush();
+
+        final artifacts = getArtifactNames(
+          target: target,
+          libraryName: crateInfo.packageName,
+          remote: true,
+        );
+
+        final prefix = precompiledBinaries.uriPrefix;
+
+        bool ok = true;
+
+        for (final artifact in artifacts) {
+          final fileName = PrecompileBinaries.fileName(target, artifact);
+          final signatureFileName =
+              PrecompileBinaries.signatureFileName(target, artifact);
+
+          final url = Uri.parse('$prefix$crateHash/$fileName');
+          final signatureUrl =
+              Uri.parse('$prefix$crateHash/$signatureFileName');
+
+          final signature = await get(signatureUrl);
+          if (signature.statusCode != 200) {
+            stdout.writeln('MISSING');
+            ok = false;
+            break;
+          }
+          final asset = await get(url);
+          if (asset.statusCode != 200) {
+            stdout.writeln('MISSING');
+            ok = false;
+            break;
+          }
+
+          if (!verify(precompiledBinaries.publicKey, asset.bodyBytes,
+              signature.bodyBytes)) {
+            stdout.writeln('INVALID SIGNATURE');
+            ok = false;
+          }
+        }
+
+        if (ok) {
+          stdout.writeln('OK');
+        }
+      }
+    }
+  }
+}

mobile/apps/photos/rust_builder/cargokit/build_tool/pubspec.lock

@@ -0,0 +1,453 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      sha256: eb376e9acf6938204f90eb3b1f00b578640d3188b4c8a8ec054f9f479af8d051
+      url: "https://pub.dev"
+    source: hosted
+    version: "64.0.0"
+  adaptive_number:
+    dependency: transitive
+    description:
+      name: adaptive_number
+      sha256: "3a567544e9b5c9c803006f51140ad544aedc79604fd4f3f2c1380003f97c1d77"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      sha256: "69f54f967773f6c26c7dcb13e93d7ccee8b17a641689da39e878d5cf13b06893"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.2.0"
+  args:
+    dependency: "direct main"
+    description:
+      name: args
+      sha256: eef6c46b622e0494a36c5a12d10d77fb4e855501a91c1b9ef9339326e58f0596
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  collection:
+    dependency: "direct main"
+    description:
+      name: collection
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.18.0"
+  convert:
+    dependency: "direct main"
+    description:
+      name: convert
+      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      sha256: "2fb815080e44a09b85e0f2ca8a820b15053982b2e714b59267719e8a9ff17097"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.3"
+  crypto:
+    dependency: "direct main"
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
+  ed25519_edwards:
+    dependency: "direct main"
+    description:
+      name: ed25519_edwards
+      sha256: "6ce0112d131327ec6d42beede1e5dfd526069b18ad45dcf654f15074ad9276cd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.1"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.4"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: "25517a4deb0c03aa0f32fd12db525856438902d9c16536311e76cdc57b31d7d1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  frontend_server_client:
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      sha256: "408e3ca148b31c20282ad6f37ebfa6f4bdc8fede5b74bc2f08d9d92b55db3612"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.0"
+  github:
+    dependency: "direct main"
+    description:
+      name: github
+      sha256: "9966bc13bf612342e916b0a343e95e5f046c88f602a14476440e9b75d2295411"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.17.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: "0e7014b3b7d4dac1ca4d6114f82bf1782ee86745b9b42a92c9289c23d8a0ab63"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  hex:
+    dependency: "direct main"
+    description:
+      name: hex
+      sha256: "4e7cd54e4b59ba026432a6be2dd9d96e4c5205725194997193bf871703b82c4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "759d1a329847dd0f39226c688d3e06a6b8679668e350e2891a6474f8b4bb8525"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      sha256: "97486f20f9c2f7be8f514851703d0119c3596d14ea63227af6f7a481ef2b2f8b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.1"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.2"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.7"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: b10a7b2ff83d83c777edba3c6a0f97045ddadd56c944e1a23a3fdf43a1bf4467
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.8.1"
+  lints:
+    dependency: "direct dev"
+    description:
+      name: lints
+      sha256: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  logging:
+    dependency: "direct main"
+    description:
+      name: logging
+      sha256: "623a88c9594aa774443aa3eb2d41807a48486b5613e67599fb4c41c0ad47c340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.16"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      sha256: e4ff8e8564c03f255408decd16e7899da1733852a9110a58fe6d1b817684a63e
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      sha256: "6e7eac89047ab8a8d26cf16127b5ed26de65209847630400f9aefd7cd5c730db"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  path:
+    dependency: "direct main"
+    description:
+      name: path
+      sha256: "2ad4cddff7f5cc0e2d13069f2a3f7a73ca18f66abd6f5ecf215219cdb3638edb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.8.0"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: cb3798bef7fc021ac45b308f4b51208a152792445cce0448c9a4ba5879dd8750
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.4.0"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "40d3ab1bbd474c4c2328c91e3a7df8c6dd629b79ece4c4bd04bee496a224fb0c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      sha256: ad29c505aee705f41a4d8963641f91ac4cee3c8fad5947e033390a7bd8180fa4
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      sha256: "89f967eca29607c933ba9571d838be31d67f53f6e4ee15147d5dc2934fee1b1e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      sha256: a41d3f53c4adf0f57480578c1d61d90342cd617de7fc8077b1304643c2d85c1e
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      sha256: "9ca081be41c60190ebcb4766b2486a7d50261db7bd0f5d9615f2d653637a84c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      sha256: "84cf769ad83aa6bb61e0aa5a18e53aea683395f196a6f39c4c881fb90ed4f7ae"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      sha256: "708b3f6b97248e5781f493b765c3337db11c5d2c81c3094f10904bfa8004c703"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.10.12"
+  source_span:
+    dependency: "direct main"
+    description:
+      name: source_span
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.11.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      sha256: "9b0dd8e36af4a5b1569029949d50a52cb2a2a2fdaa20cebb96e6603b9ae241f9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.24.6"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.1"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      sha256: "4bef837e56375537055fdbbbf6dd458b1859881f4c7e6da936158f77d61ab265"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.6"
+  toml:
+    dependency: "direct main"
+    description:
+      name: toml
+      sha256: "157c5dca5160fced243f3ce984117f729c788bb5e475504f3dbcda881accee44"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.14.0"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.2"
+  version:
+    dependency: "direct main"
+    description:
+      name: version
+      sha256: "2307e23a45b43f96469eeab946208ed63293e8afca9c28cd8b5241ff31c55f55"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "0fae432c85c4ea880b33b497d32824b97795b04cdaa74d270219572a1f50268d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.9.0"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      sha256: "3d2ad6751b3c16cf07c7fca317a1413b3f26530319181b37e3b9039b84fc01d8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      sha256: d88238e5eac9a42bb43ca4e721edba3c08c6354d4a53063afaa568516217621b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      sha256: "67d3a8b6c79e1987d19d848b0892e582dbb0c66c57cc1fef58a177dd2aa2823d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
+  yaml:
+    dependency: "direct main"
+    description:
+      name: yaml
+      sha256: "75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
+sdks:
+  dart: ">=3.0.0 <4.0.0"

mobile/apps/photos/rust_builder/cargokit/build_tool/pubspec.yaml

@@ -0,0 +1,33 @@
+# This is copied from Cargokit (which is the official way to use it currently)
+# Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+name: build_tool
+description: Cargokit build_tool. Facilitates the build of Rust crate during Flutter application build.
+publish_to: none
+version: 1.0.0
+
+environment:
+  sdk: ">=3.0.0 <4.0.0"
+
+# Add regular dependencies here.
+dependencies:
+  # these are pinned on purpose because the bundle_tool_runner doesn't have
+  # pubspec.lock. See run_build_tool.sh
+  logging: 1.2.0
+  path: 1.8.0
+  version: 3.0.0
+  collection: 1.18.0
+  ed25519_edwards: 0.3.1
+  hex: 0.2.0
+  yaml: 3.1.2
+  source_span: 1.10.0
+  github: 9.17.0
+  args: 2.4.2
+  crypto: 3.0.3
+  convert: 3.1.1
+  http: 1.1.0
+  toml: 0.14.0
+
+dev_dependencies:
+  lints: ^2.1.0
+  test: ^1.24.0

mobile/apps/photos/rust_builder/cargokit/cmake/cargokit.cmake

@@ -0,0 +1,99 @@
+SET(cargokit_cmake_root "${CMAKE_CURRENT_LIST_DIR}/..")
+
+# Workaround for https://github.com/dart-lang/pub/issues/4010
+get_filename_component(cargokit_cmake_root "${cargokit_cmake_root}" REALPATH)
+
+if(WIN32)
+    # REALPATH does not properly resolve symlinks on windows :-/
+    execute_process(COMMAND powershell -ExecutionPolicy Bypass -File "${CMAKE_CURRENT_LIST_DIR}/resolve_symlinks.ps1" "${cargokit_cmake_root}" OUTPUT_VARIABLE cargokit_cmake_root OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
+
+# Arguments
+# - target: CMAKE target to which rust library is linked
+# - manifest_dir: relative path from current folder to directory containing cargo manifest
+# - lib_name: cargo package name
+# - any_symbol_name: name of any exported symbol from the library.
+#                    used on windows to force linking with library.
+function(apply_cargokit target manifest_dir lib_name any_symbol_name)
+
+    set(CARGOKIT_LIB_NAME "${lib_name}")
+    set(CARGOKIT_LIB_FULL_NAME "${CMAKE_SHARED_MODULE_PREFIX}${CARGOKIT_LIB_NAME}${CMAKE_SHARED_MODULE_SUFFIX}")
+    if (CMAKE_CONFIGURATION_TYPES)
+        set(CARGOKIT_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>")
+        set(OUTPUT_LIB "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/${CARGOKIT_LIB_FULL_NAME}")
+    else()
+        set(CARGOKIT_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+        set(OUTPUT_LIB "${CMAKE_CURRENT_BINARY_DIR}/${CARGOKIT_LIB_FULL_NAME}")
+    endif()
+    set(CARGOKIT_TEMP_DIR "${CMAKE_CURRENT_BINARY_DIR}/cargokit_build")
+
+    if (FLUTTER_TARGET_PLATFORM)
+        set(CARGOKIT_TARGET_PLATFORM "${FLUTTER_TARGET_PLATFORM}")
+    else()
+        set(CARGOKIT_TARGET_PLATFORM "windows-x64")
+    endif()
+
+    set(CARGOKIT_ENV
+        "CARGOKIT_CMAKE=${CMAKE_COMMAND}"
+        "CARGOKIT_CONFIGURATION=$<CONFIG>"
+        "CARGOKIT_MANIFEST_DIR=${CMAKE_CURRENT_SOURCE_DIR}/${manifest_dir}"
+        "CARGOKIT_TARGET_TEMP_DIR=${CARGOKIT_TEMP_DIR}"
+        "CARGOKIT_OUTPUT_DIR=${CARGOKIT_OUTPUT_DIR}"
+        "CARGOKIT_TARGET_PLATFORM=${CARGOKIT_TARGET_PLATFORM}"
+        "CARGOKIT_TOOL_TEMP_DIR=${CARGOKIT_TEMP_DIR}/tool"
+        "CARGOKIT_ROOT_PROJECT_DIR=${CMAKE_SOURCE_DIR}"
+    )
+
+    if (WIN32)
+        set(SCRIPT_EXTENSION ".cmd")
+        set(IMPORT_LIB_EXTENSION ".lib")
+    else()
+        set(SCRIPT_EXTENSION ".sh")
+        set(IMPORT_LIB_EXTENSION "")
+        execute_process(COMMAND chmod +x "${cargokit_cmake_root}/run_build_tool${SCRIPT_EXTENSION}")
+    endif()
+
+    # Using generators in custom command is only supported in CMake 3.20+
+    if (CMAKE_CONFIGURATION_TYPES AND ${CMAKE_VERSION} VERSION_LESS "3.20.0")
+        foreach(CONFIG IN LISTS CMAKE_CONFIGURATION_TYPES)
+            add_custom_command(
+                OUTPUT
+                "${CMAKE_CURRENT_BINARY_DIR}/${CONFIG}/${CARGOKIT_LIB_FULL_NAME}"
+                "${CMAKE_CURRENT_BINARY_DIR}/_phony_"
+                COMMAND ${CMAKE_COMMAND} -E env ${CARGOKIT_ENV}
+                "${cargokit_cmake_root}/run_build_tool${SCRIPT_EXTENSION}" build-cmake
+                VERBATIM
+            )
+        endforeach()
+    else()
+        add_custom_command(
+            OUTPUT
+            ${OUTPUT_LIB}
+            "${CMAKE_CURRENT_BINARY_DIR}/_phony_"
+            COMMAND ${CMAKE_COMMAND} -E env ${CARGOKIT_ENV}
+            "${cargokit_cmake_root}/run_build_tool${SCRIPT_EXTENSION}" build-cmake
+            VERBATIM
+        )
+    endif()
+
+
+    set_source_files_properties("${CMAKE_CURRENT_BINARY_DIR}/_phony_" PROPERTIES SYMBOLIC TRUE)
+
+    if (TARGET ${target})
+        # If we have actual cmake target provided create target and make existing
+        # target depend on it
+        add_custom_target("${target}_cargokit" DEPENDS ${OUTPUT_LIB})
+        add_dependencies("${target}" "${target}_cargokit")
+        target_link_libraries("${target}" PRIVATE "${OUTPUT_LIB}${IMPORT_LIB_EXTENSION}")
+        if(WIN32)
+            target_link_options(${target} PRIVATE "/INCLUDE:${any_symbol_name}")
+        endif()
+    else()
+        # Otherwise (FFI) just use ALL to force building always
+        add_custom_target("${target}_cargokit" ALL DEPENDS ${OUTPUT_LIB})
+    endif()
+
+    # Allow adding the output library to plugin bundled libraries
+    set("${target}_cargokit_lib" ${OUTPUT_LIB} PARENT_SCOPE)
+
+endfunction()

mobile/apps/photos/rust_builder/cargokit/cmake/resolve_symlinks.ps1

@@ -0,0 +1,27 @@
+function Resolve-Symlinks {
+    [CmdletBinding()]
+    [OutputType([string])]
+    param(
+        [Parameter(Position = 0, Mandatory, ValueFromPipeline, ValueFromPipelineByPropertyName)]
+        [string] $Path
+    )
+
+    [string] $separator = '/'
+    [string[]] $parts = $Path.Split($separator)
+
+    [string] $realPath = ''
+    foreach ($part in $parts) {
+        if ($realPath -and !$realPath.EndsWith($separator)) {
+            $realPath += $separator
+        }
+        $realPath += $part
+        $item = Get-Item $realPath
+        if ($item.Target) {
+            $realPath = $item.Target.Replace('\', '/')
+        }
+    }
+    $realPath
+}
+
+$path=Resolve-Symlinks -Path $args[0]
+Write-Host $path

mobile/apps/photos/rust_builder/cargokit/gradle/plugin.gradle

@@ -0,0 +1,179 @@
+/// This is copied from Cargokit (which is the official way to use it currently)
+/// Details: https://fzyzcjy.github.io/flutter_rust_bridge/manual/integrate/builtin
+
+import java.nio.file.Paths
+import org.apache.tools.ant.taskdefs.condition.Os
+
+CargoKitPlugin.file = buildscript.sourceFile
+
+apply plugin: CargoKitPlugin
+
+class CargoKitExtension {
+    String manifestDir; // Relative path to folder containing Cargo.toml
+    String libname; // Library name within Cargo.toml. Must be a cdylib
+}
+
+abstract class CargoKitBuildTask extends DefaultTask {
+
+    @Input
+    String buildMode
+
+    @Input
+    String buildDir
+
+    @Input
+    String outputDir
+
+    @Input
+    String ndkVersion
+
+    @Input
+    String sdkDirectory
+
+    @Input
+    int compileSdkVersion;
+
+    @Input
+    int minSdkVersion;
+
+    @Input
+    String pluginFile
+
+    @Input
+    List<String> targetPlatforms
+
+    @TaskAction
+    def build() {
+        if (project.cargokit.manifestDir == null) {
+            throw new GradleException("Property 'manifestDir' must be set on cargokit extension");
+        }
+
+        if (project.cargokit.libname == null) {
+            throw new GradleException("Property 'libname' must be set on cargokit extension");
+        }
+
+        def executableName = Os.isFamily(Os.FAMILY_WINDOWS) ? "run_build_tool.cmd" : "run_build_tool.sh"
+        def path = Paths.get(new File(pluginFile).parent, "..", executableName);
+
+        def manifestDir = Paths.get(project.buildscript.sourceFile.parent, project.cargokit.manifestDir)
+
+        def rootProjectDir = project.rootProject.projectDir
+        
+        if (!Os.isFamily(Os.FAMILY_WINDOWS)) {
+            project.exec {
+                commandLine 'chmod', '+x', path
+            }
+        }
+        
+        project.exec {
+            executable path
+            args "build-gradle"
+            environment "CARGOKIT_ROOT_PROJECT_DIR", rootProjectDir
+            environment "CARGOKIT_TOOL_TEMP_DIR", "${buildDir}/build_tool"
+            environment "CARGOKIT_MANIFEST_DIR", manifestDir
+            environment "CARGOKIT_CONFIGURATION", buildMode
+            environment "CARGOKIT_TARGET_TEMP_DIR", buildDir
+            environment "CARGOKIT_OUTPUT_DIR", outputDir
+            environment "CARGOKIT_NDK_VERSION", ndkVersion
+            environment "CARGOKIT_SDK_DIR", sdkDirectory
+            environment "CARGOKIT_COMPILE_SDK_VERSION", compileSdkVersion
+            environment "CARGOKIT_MIN_SDK_VERSION", minSdkVersion
+            environment "CARGOKIT_TARGET_PLATFORMS", targetPlatforms.join(",")
+            environment "CARGOKIT_JAVA_HOME", System.properties['java.home']
+        }
+    }
+}
+
+class CargoKitPlugin implements Plugin<Project> {
+
+    static String file;
+
+    private Plugin findFlutterPlugin(Project rootProject) {
+        _findFlutterPlugin(rootProject.childProjects)
+    }
+
+   private Plugin _findFlutterPlugin(Map projects) {
+        for (project in projects) {
+            for (plugin in project.value.getPlugins()) {
+                if (plugin.class.name == "FlutterPlugin") {
+                    return plugin;
+                }
+            }
+            def plugin = _findFlutterPlugin(project.value.childProjects);
+            if (plugin != null) {
+                return plugin;
+            }
+        }
+        return null;
+    }
+
+    @Override
+    void apply(Project project) {
+        def plugin = findFlutterPlugin(project.rootProject);
+
+        project.extensions.create("cargokit", CargoKitExtension)
+
+        if (plugin == null) {
+            print("Flutter plugin not found, CargoKit plugin will not be applied.")
+            return;
+        }
+
+        def cargoBuildDir = "${project.buildDir}/build"
+        
+        // Determine if the project is an application or library
+        def isApplication = plugin.project.plugins.hasPlugin('com.android.application')
+        def variants = isApplication ? plugin.project.android.applicationVariants : plugin.project.android.libraryVariants
+
+        variants.all { variant ->
+
+            final buildType = variant.buildType.name
+
+            def cargoOutputDir = "${project.buildDir}/jniLibs/${buildType}";
+            def jniLibs = project.android.sourceSets.maybeCreate(buildType).jniLibs;
+            jniLibs.srcDir(new File(cargoOutputDir))
+
+            def platforms = plugin.getTargetPlatforms().collect()
+
+            // Same thing addFlutterDependencies does in flutter.gradle
+            if (buildType == "debug") {
+                platforms.add("android-x86")
+                platforms.add("android-x64")
+            }
+
+            // The task name depends on plugin properties, which are not available
+            // at this point
+            project.getGradle().afterProject {
+                def taskName = "cargokitCargoBuild${project.cargokit.libname.capitalize()}${buildType.capitalize()}";
+
+                if (project.tasks.findByName(taskName)) {
+                    return
+                }
+
+                if (plugin.project.android.ndkVersion == null) {
+                    throw new GradleException("Please set 'android.ndkVersion' in 'app/build.gradle'.")
+                }
+
+                def task = project.tasks.create(taskName, CargoKitBuildTask.class) {
+                    buildMode = variant.buildType.name
+                    buildDir = cargoBuildDir
+                    outputDir = cargoOutputDir
+                    ndkVersion = plugin.project.android.ndkVersion
+                    sdkDirectory = plugin.project.android.sdkDirectory
+                    minSdkVersion = plugin.project.android.defaultConfig.minSdkVersion.apiLevel as int
+                    compileSdkVersion = plugin.project.android.compileSdkVersion.substring(8) as int
+                    targetPlatforms = platforms
+                    pluginFile = CargoKitPlugin.file
+                }
+                def onTask = { newTask ->
+                    if (newTask.name == "merge${buildType.capitalize()}NativeLibs") {
+                        newTask.dependsOn task
+                        // Fix gradle 7.4.2 not picking up JNI library changes
+                        newTask.outputs.upToDateWhen { false }
+                    }
+                }
+                project.tasks.each onTask
+                project.tasks.whenTaskAdded onTask
+            }
+        }
+    }
+}

mobile/apps/photos/rust_builder/cargokit/run_build_tool.cmd

@@ -0,0 +1,91 @@
+@echo off
+setlocal
+
+setlocal ENABLEDELAYEDEXPANSION
+
+SET BASEDIR=%~dp0
+
+if not exist "%CARGOKIT_TOOL_TEMP_DIR%" (
+    mkdir "%CARGOKIT_TOOL_TEMP_DIR%"
+)
+cd /D "%CARGOKIT_TOOL_TEMP_DIR%"
+
+SET BUILD_TOOL_PKG_DIR=%BASEDIR%build_tool
+SET DART=%FLUTTER_ROOT%\bin\cache\dart-sdk\bin\dart
+
+set BUILD_TOOL_PKG_DIR_POSIX=%BUILD_TOOL_PKG_DIR:\=/%
+
+(
+    echo name: build_tool_runner
+    echo version: 1.0.0
+    echo publish_to: none
+    echo.
+    echo environment:
+    echo   sdk: '^>=3.0.0 ^<4.0.0'
+    echo.
+    echo dependencies:
+    echo   build_tool:
+    echo     path: %BUILD_TOOL_PKG_DIR_POSIX%
+) >pubspec.yaml
+
+if not exist bin (
+    mkdir bin
+)
+
+(
+    echo import 'package:build_tool/build_tool.dart' as build_tool;
+    echo void main^(List^<String^> args^) ^{
+    echo    build_tool.runMain^(args^);
+    echo ^}
+) >bin\build_tool_runner.dart
+
+SET PRECOMPILED=bin\build_tool_runner.dill
+
+REM To detect changes in package we compare output of DIR /s (recursive)
+set PREV_PACKAGE_INFO=.dart_tool\package_info.prev
+set CUR_PACKAGE_INFO=.dart_tool\package_info.cur
+
+DIR "%BUILD_TOOL_PKG_DIR%" /s > "%CUR_PACKAGE_INFO%_orig"
+
+REM Last line in dir output is free space on harddrive. That is bound to
+REM change between invocation so we need to remove it
+(
+    Set "Line="
+    For /F "UseBackQ Delims=" %%A In ("%CUR_PACKAGE_INFO%_orig") Do (
+        SetLocal EnableDelayedExpansion
+        If Defined Line Echo !Line!
+        EndLocal
+        Set "Line=%%A")
+) >"%CUR_PACKAGE_INFO%"
+DEL "%CUR_PACKAGE_INFO%_orig"
+
+REM Compare current directory listing with previous
+FC /B "%CUR_PACKAGE_INFO%" "%PREV_PACKAGE_INFO%" > nul 2>&1
+
+If %ERRORLEVEL% neq 0 (
+    REM Changed - copy current to previous and remove precompiled kernel
+    if exist "%PREV_PACKAGE_INFO%" (
+        DEL "%PREV_PACKAGE_INFO%"
+    )
+    MOVE /Y "%CUR_PACKAGE_INFO%" "%PREV_PACKAGE_INFO%"
+    if exist "%PRECOMPILED%" (
+        DEL "%PRECOMPILED%"
+    )
+)
+
+REM There is no CUR_PACKAGE_INFO it was renamed in previous step to %PREV_PACKAGE_INFO%
+REM which means  we need to do pub get and precompile
+if not exist "%PRECOMPILED%" (
+    echo Running pub get in "%cd%"
+    "%DART%" pub get --no-precompile
+    "%DART%" compile kernel bin/build_tool_runner.dart
+)
+
+"%DART%" "%PRECOMPILED%" %*
+
+REM 253 means invalid snapshot version.
+If %ERRORLEVEL% equ 253 (
+    "%DART%" pub get --no-precompile
+    "%DART%" compile kernel bin/build_tool_runner.dart
+    "%DART%" "%PRECOMPILED%" %*
+)

mobile/apps/photos/rust_builder/cargokit/run_build_tool.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+
+set -e
+
+BASEDIR=$(dirname "$0")
+
+mkdir -p "$CARGOKIT_TOOL_TEMP_DIR"
+
+cd "$CARGOKIT_TOOL_TEMP_DIR"
+
+# Write a very simple bin package in temp folder that depends on build_tool package
+# from Cargokit. This is done to ensure that we don't pollute Cargokit folder
+# with .dart_tool contents.
+
+BUILD_TOOL_PKG_DIR="$BASEDIR/build_tool"
+
+if [[ -z $FLUTTER_ROOT ]]; then # not defined
+  DART=dart
+else
+  DART="$FLUTTER_ROOT/bin/cache/dart-sdk/bin/dart"
+fi
+
+cat << EOF > "pubspec.yaml"
+name: build_tool_runner
+version: 1.0.0
+publish_to: none
+
+environment:
+  sdk: '>=3.0.0 <4.0.0'
+
+dependencies:
+  build_tool:
+    path: "$BUILD_TOOL_PKG_DIR"
+EOF
+
+mkdir -p "bin"
+
+cat << EOF > "bin/build_tool_runner.dart"
+import 'package:build_tool/build_tool.dart' as build_tool;
+void main(List<String> args) {
+  build_tool.runMain(args);
+}
+EOF
+
+# Create alias for `shasum` if it does not exist and `sha1sum` exists
+if ! [ -x "$(command -v shasum)" ] && [ -x "$(command -v sha1sum)" ]; then
+  shopt -s expand_aliases
+  alias shasum="sha1sum"
+fi
+
+# Dart run will not cache any package that has a path dependency, which
+# is the case for our build_tool_runner. So instead we precompile the package
+# ourselves.
+# To invalidate the cached kernel we use the hash of ls -LR of the build_tool
+# package directory. This should be good enough, as the build_tool package
+# itself is not meant to have any path dependencies.
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  PACKAGE_HASH=$(ls -lTR "$BUILD_TOOL_PKG_DIR" | shasum)
+else
+  PACKAGE_HASH=$(ls -lR --full-time "$BUILD_TOOL_PKG_DIR" | shasum)
+fi
+
+PACKAGE_HASH_FILE=".package_hash"
+
+if [ -f "$PACKAGE_HASH_FILE" ]; then
+    EXISTING_HASH=$(cat "$PACKAGE_HASH_FILE")
+    if [ "$PACKAGE_HASH" != "$EXISTING_HASH" ]; then
+        rm "$PACKAGE_HASH_FILE"
+    fi
+fi
+
+# Run pub get if needed.
+if [ ! -f "$PACKAGE_HASH_FILE" ]; then
+    "$DART" pub get --no-precompile
+    "$DART" compile kernel bin/build_tool_runner.dart
+    echo "$PACKAGE_HASH" > "$PACKAGE_HASH_FILE"
+fi
+
+set +e
+
+"$DART" bin/build_tool_runner.dill "$@"
+
+exit_code=$?
+
+# 253 means invalid snapshot version.
+if [ $exit_code == 253 ]; then
+  "$DART" pub get --no-precompile
+  "$DART" compile kernel bin/build_tool_runner.dart
+  "$DART" bin/build_tool_runner.dill "$@"
+  exit_code=$?
+fi
+
+exit $exit_code

mobile/apps/photos/rust_builder/ios/Classes/dummy_file.c

@@ -0,0 +1 @@
+// This is an empty file to force CocoaPods to create a framework.

mobile/apps/photos/rust_builder/ios/rust_lib_photos.podspec

@@ -0,0 +1,45 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint rust_lib_photos.podspec` to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'rust_lib_photos'
+  s.version          = '0.0.1'
+  s.summary          = 'A new Flutter FFI plugin project.'
+  s.description      = <<-DESC
+A new Flutter FFI plugin project.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+
+  # This will ensure the source files in Classes/ are included in the native
+  # builds of apps using this FFI plugin. Podspec does not support relative
+  # paths, so Classes contains a forwarder C file that relatively imports
+  # `../src/*` so that the C sources can be shared among all target platforms.
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.dependency 'Flutter'
+  s.platform = :ios, '11.0'
+
+  # Flutter.framework does not contain a i386 slice.
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
+  s.swift_version = '5.0'
+
+  s.script_phase = {
+    :name => 'Build Rust library',
+    # First argument is relative path to the `rust` folder, second is name of rust library
+    :script => 'sh "$PODS_TARGET_SRCROOT/../cargokit/build_pod.sh" ../../rust rust_lib_photos',
+    :execution_position => :before_compile,
+    :input_files => ['${BUILT_PRODUCTS_DIR}/cargokit_phony'],
+    # Let XCode know that the static library referenced in -force_load below is
+    # created by this build step.
+    :output_files => ["${BUILT_PRODUCTS_DIR}/librust_lib_photos.a"],
+  }
+  s.pod_target_xcconfig = {
+    'DEFINES_MODULE' => 'YES',
+    # Flutter.framework does not contain a i386 slice.
+    'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
+    'OTHER_LDFLAGS' => '-force_load ${BUILT_PRODUCTS_DIR}/librust_lib_photos.a',
+  }
+end

mobile/apps/photos/rust_builder/linux/CMakeLists.txt

@@ -0,0 +1,19 @@
+# The Flutter tooling requires that developers have CMake 3.10 or later
+# installed. You should not increase this version, as doing so will cause
+# the plugin to fail to compile for some customers of the plugin.
+cmake_minimum_required(VERSION 3.10)
+
+# Project-level configuration.
+set(PROJECT_NAME "rust_lib_photos")
+project(${PROJECT_NAME} LANGUAGES CXX)
+
+include("../cargokit/cmake/cargokit.cmake")
+apply_cargokit(${PROJECT_NAME} ../../rust rust_lib_photos "")
+
+# List of absolute paths to libraries that should be bundled with the plugin.
+# This list could contain prebuilt libraries, or libraries created by an
+# external build triggered from this build file.
+set(rust_lib_photos_bundled_libraries
+  "${${PROJECT_NAME}_cargokit_lib}"
+  PARENT_SCOPE
+)

mobile/apps/photos/rust_builder/macos/Classes/dummy_file.c

@@ -0,0 +1 @@
+// This is an empty file to force CocoaPods to create a framework.

mobile/apps/photos/rust_builder/macos/rust_lib_photos.podspec

@@ -0,0 +1,44 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint rust_lib_photos.podspec` to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'rust_lib_photos'
+  s.version          = '0.0.1'
+  s.summary          = 'A new Flutter FFI plugin project.'
+  s.description      = <<-DESC
+A new Flutter FFI plugin project.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+
+  # This will ensure the source files in Classes/ are included in the native
+  # builds of apps using this FFI plugin. Podspec does not support relative
+  # paths, so Classes contains a forwarder C file that relatively imports
+  # `../src/*` so that the C sources can be shared among all target platforms.
+  s.source           = { :path => '.' }
+  s.source_files     = 'Classes/**/*'
+  s.dependency 'FlutterMacOS'
+
+  s.platform = :osx, '10.11'
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
+  s.swift_version = '5.0'
+
+  s.script_phase = {
+    :name => 'Build Rust library',
+    # First argument is relative path to the `rust` folder, second is name of rust library
+    :script => 'sh "$PODS_TARGET_SRCROOT/../cargokit/build_pod.sh" ../../rust rust_lib_photos',
+    :execution_position => :before_compile,
+    :input_files => ['${BUILT_PRODUCTS_DIR}/cargokit_phony'],
+    # Let XCode know that the static library referenced in -force_load below is
+    # created by this build step.
+    :output_files => ["${BUILT_PRODUCTS_DIR}/librust_lib_photos.a"],
+  }
+  s.pod_target_xcconfig = {
+    'DEFINES_MODULE' => 'YES',
+    # Flutter.framework does not contain a i386 slice.
+    'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
+    'OTHER_LDFLAGS' => '-force_load ${BUILT_PRODUCTS_DIR}/librust_lib_photos.a',
+  }
+end

mobile/apps/photos/rust_builder/pubspec.yaml

@@ -0,0 +1,34 @@
+name: rust_lib_photos
+description: "Utility to build Rust code"
+version: 0.0.1
+publish_to: none
+
+environment:
+  sdk: '>=3.3.0 <4.0.0'
+  flutter: '>=3.3.0'
+
+dependencies:
+  flutter:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.2
+
+dev_dependencies:
+  ffi: ^2.0.2
+  ffigen: ^11.0.0
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+flutter:
+  plugin:
+    platforms:
+      android:
+        ffiPlugin: true
+      ios:
+        ffiPlugin: true
+      linux:
+        ffiPlugin: true
+      macos:
+        ffiPlugin: true
+      windows:
+        ffiPlugin: true

mobile/apps/photos/rust_builder/windows/.gitignore

@@ -0,0 +1,17 @@
+flutter/
+
+# Visual Studio user-specific files.
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Visual Studio build-related files.
+x64/
+x86/
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/

mobile/apps/photos/rust_builder/windows/CMakeLists.txt

@@ -0,0 +1,20 @@
+# The Flutter tooling requires that developers have a version of Visual Studio
+# installed that includes CMake 3.14 or later. You should not increase this
+# version, as doing so will cause the plugin to fail to compile for some
+# customers of the plugin.
+cmake_minimum_required(VERSION 3.14)
+
+# Project-level configuration.
+set(PROJECT_NAME "rust_lib_photos")
+project(${PROJECT_NAME} LANGUAGES CXX)
+
+include("../cargokit/cmake/cargokit.cmake")
+apply_cargokit(${PROJECT_NAME} ../../../../../../rust rust_lib_photos "")
+
+# List of absolute paths to libraries that should be bundled with the plugin.
+# This list could contain prebuilt libraries, or libraries created by an
+# external build triggered from this build file.
+set(rust_lib_photos_bundled_libraries
+  "${${PROJECT_NAME}_cargokit_lib}"
+  PARENT_SCOPE
+)

mobile/apps/photos/test_driver/integration_test.dart

@@ -0,0 +1,3 @@
+import 'package:integration_test/integration_test_driver.dart';
+
+Future<void> main() => integrationDriver();